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 Many of these species are raretrees are rare in the savanna biome because of  Thus, when fires are absent and water supply is suffi-cient, forest trees outcompete

Our goal here, however, was to focus on the processes operating in. The lack of water makes the savanna a difficult place for tall plants such as trees to grow. D) large variations in seasonal rainfall. This Australian savanna burns yearly; the plants that thrive here are adapted to this regular fiery cycle. Changes in any of these factors can lead to an. C) extreme winter temperatures. Seven major types of biomes include tropical rainforest, temperate deciduous forest, savanna grassland, temperate grassland, polar, desert, and coral reef. 1 b). Aquatic. These are all characteristics of the _____ biome. Biome which is dominated by grass, and in which trees are rare. C) frequent fires. The original list was rainforest, seasonal forest, forest, shrubland, taiga, tundra, plains, swampland, desert, frozen desert, and savanna. Savannas have a seasonal climate with distinct wet and dry seasons. The Cerrado is a vast tropical biome composed of savannas and grasslands amid humid and dry forests. This biome is the richest of all in species of both plants and animals, with up to 500 species of trees per km 2. More rain leads to fewer trees in the African savanna. Precipitation in grassland biomes is often high enough to support grasses and a few small trees, but for the most part trees are rare. The Savanna Biome is the largest Biome in southern Africa, occupying 46% of its area, and over one-third the area of South Africa. 1) Seed: 1731. Stapelia are a genus of flowering plants in the family Apocynaceae. 2) Which of the following statements best describes the effect of climate on biome distribution? Because the two dominant life forms that characterize savanna ecosystems—C 4 grasses and C 3 trees and shrubs—respond differently to the same environmental controls, and because many vegetation traits of tropical savanna trees and grasses differ consistently from those of forests and temperate grasslands (Craine, Lee, Bond, Williams. Windswept Savanna can spawn fairly crazy rock formations. , 2) Which of the following statements best describes the effect of climate on biome distribution? A). 2. 1 Multiple-Choice Questions 1) Trees are rare in the savanna biome because of A) insufficient annual precipitation. Many prairie and woodland plants, including grasses, forbs, shrubs, and trees, thrive in savannas. savanna, vegetation type that grows under hot, seasonally dry climatic conditions and is characterized by an open tree canopy (i. A) insufficient annual precipitation. Thus, when fires are absent and water supply is suffi-cient, forest trees outcompete. deciduous forest b. This biome is known for its golden tall grasses and diverse range of animal species. Study with Quizlet and memorize flashcards containing terms like Trees are rare in the savanna biome because of a. Because of the availability of grass in the savanna, there are many grazing animals who take advantage of this abundant food supply. Most savanna grass is coarse and grows in tufts with intervening patches of bare ground. Yet the true extent of these changes may be underestimated because of the lack of clarity regarding the definition of the grassland biome (Ratnam et al. Savanna is a biome in Minecraft that has greenish-brown grass and acacia trees. A biome is a large community of plants and animals that occupies a distinct region defined by its climate and geography. D) large variations in seasonal rainfall. Located north and south of tropical forest biomes are savannas (Figure 4), with lower yearly rainfall and longer dry seasons (Figure 6). A) insufficient annual precipitation. These root systems also enable plants to quickly grow again after a fire. This biome is the richest of all in species of both plants and animals, with up to 500 species of trees per km 2. Savannas are found in tropical and subtropical regions, primarily in Africa, South America, Australia, and parts of Asia. Photosynthetic free-floating marine organisms. Many plants have roots that grow deep in the ground, where the most water can be found. Grasslands have a dry, warm climate. D) large variations in seasonal rainfall. Stapelia are a genus of flowering plants in the family Apocynaceae. 6 The dominant plant in the temperate forest biome is deciduous trees. 6 The dominant plant in the temperate forest biome is deciduous trees. You can think of a savanna as a mix between a forest and a temperate grassland, The Savanna does not receive enough rainfall to support a forest. The hardwood broadleaf deciduous trees around the world. Savanna Biome: Savanna biome is a biome that receives minimal rainfall of about 250 to 750 millimeters per year. Grasses are the most common plants in a savanna biome. Insufficient animal. Frequent fires. Much further south are the tropical grassland and savanna biomes that appear primarily in Africa. regions c. The major terrestrial biomes are listed below. a Northern Pine forest d. Water is often scarce in Africa's savannas, so it would seem logical to conclude that more rainfall would allow the few trees in the expansive grassland. This tree has a white color and is quite easy to find. The trees in the savanna biome are rare as the. It is the coexistence of trees and grasses that make savannas unique. Dripstone caves were added in 1. a dense forest. The buck moth (Hemileuca maia) and the rare huckleberry grasshopper (Melanoplus fasciatus) are apparently highly associated with savanna. There are also low-lying shrubs and some trees. , Which of the following statements best describes the effect of climate on biome distribution? A). You can find cacti and dead bushes in the biome. The savanna is home to a wide variety of animals, including elephants, lions, zebras, and giraffes. Below are the characteristics of a savanna: Trees and grasses: The savanna is an open grassland with a few solitary trees and bushes here and there. There is a tree-grass balance. It falls within the savanna biome in analyses of tree growth that compare grassland with savanna sites. E) permafrost. 2). D) large variations in seasonal rainfall. , 2003, 2009). Monechma Hochst. vegetation structure refers to the type of vegetation that dominates a region, such as closed-canopy forest (dense) or open (sparse) grassland Biomes are the second-largest units in the spatial hierarchy; only the. The fruit itself is encased in a hard, woody shell. a. an African savanna c. The savanna biome is made up of grasslands and has very few trees. While also flat and lacking many large trees, this biome differs from its tropical counterpart in that it experiences generally cooler, and more varied, temperatures year-round. This biome also spawns horses and llamas, but without villages and pillager outposts. Because of this external influence, most characteristic Cerrado formations must probably be found in the central portion of the biome (Castro et al. Temperate forests and grasslands are different biomes because they receive a different quality and quantity of sunlight,. , 2009; Wigley et al. 4. , 2011) and many grasslands and savanna are. ). Perspectives in Ecology and Conservation . These tiny birds were once common throughout the longleaf range, but their population. Chaparral Biome. Plants in the Tundra biome are_____ short, because of the ground is frozen. “Trees and grasses are competing over the amount of money the savanna gets every year and it matters how they use their funds. The savanna climate is characterized by distinct wet and dry seasons, mean high temperature through­out the year and abundant insolation. C) extreme winterWell, plants in the savanna have developed defenses for this. acidic soils c. Tree trunks are used to store water, fruits are consumed; and the bark and foliage are used for a number of medicinal purposes. They are found on either side of the equator on the edges of tropical. short, because there is very little sunlight during the growing season. Savannas are found in Africa, North America, South America, and Australia. but all show various degrees of specialization because of the lack. These regions are known as biomes. With the rapid rate of deforestation in places like the Amazon basin, some plants may become extinct before being cataloged, let. Average annual temperature and precipitation are sufficient. b) acidic soils. seas d. How habitat loss and fragmentation are reducing conservation opportunities for vertebrates in the most threatened savanna of the World. phytoplankton. Marine West Coast. Savanna fires, however, tend to be low on the ground, burning the grasses and young saplings, but not big or hot enough to scorch adult trees. 1 Trees are rare in the savanna biome because of A) insufficient annual precipitation. a) in a community through different seasons b) in an ecosystem as it evolves over time c) in biomes at different latitudes d) in different depths in the ocean, Please use the following information to answer. BP in the Deccan, with the step-wise reduction in ISM activity and associated MAP leading to a gradual spread of deciduous trees and the. Minorsky, Steven A. The Savanna Biomes (Mesic/Dystrophic and Arid/Eutrophic) of Angola cover over 90% of the country. D) large variations in seasonal rainfall. Air, soil, and water are all abiotic components of an ecosystem. Trees are rare in the savanna biome because of A) insufficient annual precipitation. They occur from sea level to over 2100m above sea level. Jungle tree leaves drop jungle tree saplings. Badlands are rare warm biomes in Minecraft that contain an abundant supply of Terracotta. It can be found between a tropical rainforest and desert biome. The climate of the Savanna ecosystem is quite warm, and the temperature ranges between 68 degrees Fahrenheit and 86 degrees Fahrenheit. Is the savanna an example of a biome? Terrestrial Biome Examples. Natural threats to the savanna biome are; drought and overgrazing by native herbivores. Unlock document. 7 to 4. (Acanthaceae) is a diverse and ecologically important plant group in sub-Saharan Africa, well represented in the fire-prone savanna biome and with a striking radiation into the non-fire-prone succulent biome in the Namib Desert. Lightning_Zephyr. D) large variations in seasonal rainfall. The plants that grow in a savanna are adapted to the warm, dry climate. Ecology 80, 1354–1369 10. Enormous herds of animals: The savanna is frequently home to enormous herds of livestock that graze that thrive on plentiful grass and trees. Most of the plants are tall and short grasses. Trees were defined as freely standing woody plants that were classified in the Flora do Brasil project database (Reflora, 2020) as trees or shrubs, including palms but excluding tree ferns and subshrubs. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses. Tropical Savanna. Study with Quizlet and memorize flashcards containing terms like Trees are rare in the savanna biome because of acidic topsoils. Both biomes feature gravel that replaces most grass blocks and fewer trees. Grasses, for example, grow quickly in the wet season. Figure 29. The first of these is savanna. Savannas and grasslands are characterized by two seasons, maintained by fire, and have organisms that are drought resistant. what is rare however is that those acacia trees dont seem to be in a savanna biome at all. Study with Quizlet and memorize flashcards containing terms like 1) Trees are rare in the savanna biome because of A) insufficient annual precipitation. Trees do not dominate the biome because the small amount of high sun rainfall is not enough to sustain such. 1999), where endemic and Typical Cerrado Species (TCS) are likely to occur. The savanna biome is mostly made up of grass but there are a few trees. but all show various degrees of specialization because of the lack. Areas with savannas have two seasons instead of four: a six-to-eight. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. In its dry season of the tropical savanna most of the plants that live there get dry, shrivel up. Here are some of the most interesting things about it: 1. herds of herbivores, The proper order, from smallest to largest, for the. The savanna is a special ecosystem because trees and grass coexist. lakes b. Therefore, some trees and grasses have large horizontal root systems by which they obtain water dur-ing the dry season. Savanna is a biome in Minecraft that has greenish-brown grass and acacia trees. They have a dry climate and are located near the equator, which. D) limited rainfall. *350 centimeters of rain each year. Study with Quizlet and memorize flashcards containing terms like While on a walk through a forest, you notice birds in trees, earthworms in the soil, and fungi on plant litter on the forest floor. 1. They are about 8 blocks tall and feature unique diagonal trunks, and may occasionally have multiple canopies. Fire frequency and population dynamics of woody plants in a neotropical savanna. Both biomes feature gravel that replaces most grass blocks and fewer trees. terrestrial biomes. -one elephant. Tropical grassy biomes represented 54% of the pixels (mainly grasslands), with the remainder mostly being sparse vegetation or bare soil (see Supporting Information Table S4. E) permafrost. We adopted this criterion because phenotypic plasticity is a common phenomenon in woody savanna species, which makes the distinction. Lianas are relatively scarce on the African savanna, however, and relatively little is known about how the plants interact with other plants, or how. It falls within the savanna biome in analyses of tree growth that compare grassland with savanna sites. Tropical rain forests have the highest overall productivity of all terrestrial ecological communities. The savanna is right between the two biomes. C) extreme winter temperatures. 4. C) frequent fires. The candelabra tree (E. The term biome was first used by Clements and Shelford in 1939; an interesting team as Clements was a botanist and Shelford a zoologist. Study with Quizlet and memorize flashcards containing terms like Trees are rare in the savanna biome because of acidic topsoils. biomes d. Temperate forests and grasslands are different biomes because they receive a different quality and quantity of sunlight, even though they have essentially the same annual. Lions are most active at night and live in a variety of habitats but prefer grassland, savanna, dense scrub, and open woodland. rivers c. 4. This Chapter presents the case for the recognition, across Africa, of these two distinctive savanna biomes, both defined by the co-dominance of fire-tolerant trees and C 4 grasses, falling within seasonal climates of warm, wet summers and mild, dry. , The growing season would generally be shortest in which of the following biomes? a Northern pine forest a broadleaf forest a tropical rain forest a temperate grassland an African savanna, Areas where terrestrial. It also highlighted the existence of savanna on rare,. The baobab tree has adapted to the savanna biome by only producing leaves during the wet season. The rain forest of the Pacific Northwest is composed of a few species of broadleaf. What percentage of Africa is considered to be a Savanna? 50%. There are many oak savannas, which are plants with a variety of open-grown varieties. There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these biomes can be further divided into more specific categories, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga. In the Serengeti specifically, two species of acacia trees grow in abundance: the acacia senegal and the umbrella thorn acacia. Usually, players will find this tree in the birch forest biome. Mean annual. Birch trees are similar to oak trees in size and shape, but differ in color. 2. Starting in Minecraft 1. You can think of biomes as 'global ecosystems. rivers c. The most notable tropical savanna region is in the Serengeti, which is in Tanzania near the Kenya border. There are many other valuable biomes in Africa, most notably the extensive dry open forest, savanna and grassland biomes, and also mangroves, afro-montane ecosystems and others. moist winters. Study with Quizlet and memorize flashcards containing terms like 1) Trees are rare in the savanna biome because of A) insufficient annual precipitation. To this ecological riddle, Princeton University researchers might have finally provided a solution. Red sand replaces the sand blocks along with blocks of terracotta and stained terracotta. Savannas are located in tropical and subtropical areas near the equator and between tropical rain forest and desert biomes. What is a biome? A major type of ecosystem. Although the majority of. The last type of Minecraft tree is a birch tree. First, it is necessary to acknowledge the limits of this theme issue. These acacia trees and the ants that live in them have a symbiotic relationship called a mutualism. Tropical Seasonal Forest and Scrub The __________ biome is characterized by shrubs and grasses, and has a highly seasonal water balance; summers are dry and most precipitation occurs during the cool winters. B) excessive annual precipitation. ,1997;Hoffmann et al. com member to unlock this answer! Create your account. Savanna trees that grow above ground can tolerate fire. E) permafrost. 4%), in which one is Extinct and two are Extinct in the Wild. On temperate grasslands, you might find prairie. The Shattered Savanna and Shattered Savanna Plateau are rare variants of the common Savanna biome. habitat. Savanna Biome. woody plants b. The limited available evidence suggests that lianas are widespread but locally rare in savannas (20, 21). Business, Economics, and Finance. trees are rare in the savanna biome because of: A) tropical storms B) limited rainfall C) frequent fires D) acidic topsoils C) frequent fires the growing season would generally be. The savanna biome is vast and covers around 20% of the global land surface, spanning different ranges of rainfall across different continents from 300–1500. Study with Quizlet and memorize flashcards containing terms like trees are rare in savanna biome because of, growing season would generally be shortest in which of the following biomes, trees are not found in tundra because and more. In savanna woodland, the trees are spaced rather widely apart, because soil moisture during the dry season is not sufficient to support a full tree cover. -extreme winter temperatures. The following is an extract of text from Low & Rebelo (1996) for Savanna Biome. The temperatures in summer typically vary between 40 and 60 o F. The savanna biome covers 50% of the African continent, encompassing diverse ecosystems that include densely wooded Miombo woodlands and Serengeti grasslands with scattered trees. the trees are of medium height. Lions are one of the common animals we think about living in the African savanna. Reece, Lisa A. There are 8 species of trees: oak, birch, pine/spruce, jungle, dark oak, acacia, crimson, and warped. These adaptations include size, shape, and color. The forest biome, then, includes the most different types of life form, but it is dominated by trees, which together form continuous coverage. seasonal precipitation d. large variations in seasonal rainfall e. The animals of the savanna have developed unique skills and characteristics to take advantage of. The savanna biome is vast and covers around 20% of the global land surface, spanning different ranges of rainfall across different continents from 300–1500 mm in Africa, 350–2000 mm in Australia and 800–2500 mm in South America. In savanna woodland, the trees are spaced rather widely apart because there is not enough soil moisture during the dry season to support a full tree cover. Average rainfall range is the Savanna biome is: 500-1500mm/year. These root systems also enable plants to quickly grow again after a fire. 17 (Image via Mojang) This seed is a pretty standard savanna seed. Grasslands support a variety of species. 1016/j. , 2009). Climate differences between grassland and savanna sites Sites in the higher-elevation grasslands had lower average monthly temperatures, fewer growth days and lower summer heat units than the lower-altitude savanna sites ( Table 1. Generally, plants in the savanna include; forbs, shrubs, grasses and trees. Oak Woodland. Because of the slight temperature changes within the ranges of just between 20 o C and 30 o C in the Savanna biome, it is easy for the animals and plants to adapt. The Savanna biome is an area with very dry season and very wet season. , The level of ecologic organization that. Earth's land surface is covered by biomes. Trees generally transpire more water than grasses because of their more extensive root system, greater leaf area, and greater canopy roughness. Mean annual precipitation (MAP) for the African sites ranges from 400 to 1100 mm, which represents the range of MAP within the savanna biome on the continent (Sankaran et al. Savannas are areas that are mostly made up of grasses with sparse trees. Trees are not usually found in the tundra biome because of. The savanna biome is rich with herbivores such as elephants, zebras, gazelles, and buffalo. Spawns only between jungles and savannas, and that's why it's so rare. The trees in a savanna are usually widely spaced and small to medium-sized. 1 2) Which of the following statements best describes the effect of climate on biome. Water availability was limiting to trees because, at the spatial grain of our. 1 a) and overlap with climate envelopes of Whittaker’s tropical seasonal forest/savanna biomes (Ricklefs, 2008; based on Whittaker, 1970, Fig. In botany, a tree is a perennial plant with an elongated. B) acidic soils. The small amount of high sun rainfall in the savanna is not enough to sustain trees in the savanna biome. In alpine biomes, precipitation varies. Players will spawn into a savanna biome surrounded by acacia trees. It is well developed over the lowveld and Kalahari region of South Africa and is also the dominant vegetation in Botswana, Namibia and. 2005). Evolutionary partitioning between Grassland, Savanna and Forest is supported suggested by low introgression of Biomes at family and genus level, and by a dominance of life-forms adapted to open habitats environments. Reference: 1. However, at the high-rainfall end of the tropical savanna biome, where heavily wooded mesic savannas begin to structurally resemble forests, or where tropical forests are degraded such that they open out to structurally resemble savannas, vegetation. 2) Choose the best statement that describes the effect of climate on biome. The first two are tropical grasslands. *Little light reaches forest floor. C) frequent fires. Because of their thinner bark, forest trees would need at least twice as long as savannah trees to reach fire-resistant sizes making them far more sensitive to burning. The acacia Senegal, also known as Senegalia senegal, gum acacia, or the gum arabic tree, grows in both African and Indian savannas. 1) Trees are rare in the savanna biome because of. Mean annual rainfall ranges between 250-500mm on the desert fringes of the savanna and 1300-2000mm on its border with the equatorial climate. We did not find mesobrowser densityThe net effect on trees is rare and episodic recruitment of adults in tree-fall gaps. Type Homework Help. Authors Jane B. Very few grasse Forest Biome ith mean annual rainfall of more than 525mm in the winter rainfall region and more than 725 mm rainfall in the summer rainfall region. Trees are rare in the savanna biome because of A) insufficient annual precipitation. The grass can hibernate in the ground during the dry season without drying and regrow in the summer when there is rainfall. 1. Savanna - Grassland, Climate, Animals: In general, savannas grow in tropical regions 8° to 20° from the Equator. The largest land mammal can be found there. Tropical Forest. A savanna is a rolling grassland scattered with shrubs and isolated trees, which can be found between a tropical rainforest and desert biome. Other regional factors play an important role in. The region is widely covered with grass, shrub, thicket, and wide scattered trees. Though the distribution of global vegetation can generally be predicted from climate, grasslands are an exception. B) excessive annual precipitation. B) acidic topsoils. A large body of literature exists on the invasion of savannas in the Neotropics and northern Australia where invasive plants, especially African grasses,. 2. trees, and grass. Many of these species are rare. E) permafrost. 1) Trees are rare in the savanna biome because of A) insufficient annual precipitation. The soil contains very little nutrients because the trees quickly absorb all the nutrition out of the ground. Words 4266. This biome is the richest of all in species of both plants and animals, with up to 500 species of trees per km 2. Savannas are defined based on vegetation structure, the central concept being a discontinuous tree cover in a continuous grass understorey. E) permafrost. The region is widely covered with grass, shrub, thicket, and wide scattered trees. Most endemics of conservation concern occur in Grassland (68. northern coniferous forest. Using a well-sampled, time-calibrated phylogenetic tree of the woody flora, we examine the timing of 139 evolutionary splits between savanna trees in Africa as a marker for the age of the savanna biome. The reason some plants have taproots is because they directly _____. The karri, the largest. Study with Quizlet and memorize flashcards containing terms like Trees are rare in the savanna biome because of A) insufficient annual precipitation. Flag this Question. Most authors consider fire to be an important characteristic of the savanna biome, but differ in the extent to which fire is perceived. The Savanna biome is associated with climates having seasonal precipitation accompanied with a seasonal drought. Because of the slight temperature changes within the ranges of just between 20 o C and 30 o C in the Savanna biome, it is easy for the animals and plants to adapt. The establishment, growth and survival of savanna trees are affected by browsing animals, fire, and the availability of water and nutrients. 2019) or in. Deep Dark. Trees are rare in the savanna biome because of a) insufficient annual precipitation. B) acidic soils. Why is the climate drier on leeward side of mountains that are subjected to prevailing winds. occur in equatorial areas where the temperature is warm and days are 11-12 hours long year round. Edaphic savannas are defined more by the soil type. -2) ericoid. Tropical rainforests are found at latitudes near the equator. These biomes are dominated by a mix of grasses and small trees. The structure of savanna vegetation is largely maintained by the interaction of climate, disturbance and plant life history traits, and whereas open tree. Red-cockaded woodpeckers are the best known of the animals that thrive primarily in longleaf forests. Many plants, like this baobab tree, have adaptations that help them survive the. 2h ). , 2) The growing season would generally be shortest in which of the following biomes? A) savanna B) temperate broadleaf forest C) temperate. It is also rare for living things to survive at temperatures exceeding 45 °C (113 °F); this is a reflection of evolutionary response to typical temperatures. The savannas have a diverse range of animals, from herbivores to carnivores, that have adapted to the climatic conditions and scarcity of plants, adjusting their food habits accordingly. tall, because of the competition for light. B) acidic soils. C4 grassy biomes cover vast areas that are warm enough and wet enough to support closed forests. C) extreme winter temperatures. rainforest d. It focuses on the humid tropical forest biome (the ‘rainforests’). Jackalberry trees are typically very easy to spot on the savanna because they can grow to have circumferences of 5 meters (16 feet)! Coolest Savanna Plants. , , In the ecological development of terrestrial biomes, which factor is most dependent on all the. E) permafrost. However, little research has focused on in situ measurements of the successional sequence of savanna to forest in Africa. The species found in savannas vary by the geographic location of the biome. Sausage trees will grow near dry river banks on sparsely vegetated woodlands and in floodplains. Trees. This feature, in combination with the surface fire regimes that are typical in savannas, results in very low fire-related mortality in adult savanna trees. So can the most deadly snake (the black mamba). Whittaker (1975) lists six major terrestrial physiognomic types - forest, woodland (see Section 1. However, at the high-rainfall end of the tropical savanna biome, where heavily wooded mesic savannas begin to structurally resemble forests, or where tropical forests are degraded such that they open. Fire is a frequent and widespread natural disturbance in tropical grassy biomes. Midwestern Oak Savannas. Trees are naturally-generated structures in the Overworld that can be found naturally, or grown from saplings. A plant community that contains trees, but grasses and forbs are the dominant plants. Scientists supposed that the ecosystem’s high annual precipitation would result in greater tree growth. The acacia Senegal, also known as Senegalia senegal, gum acacia, or the gum arabic tree, grows in both African and Indian. In Minecraft, you will spawn into worlds with unique weather, animals, and plants. d) large variations in seasonal rainfall. s. B) acidic soils. Savannas have a seasonal climate with distinct wet and dry seasons. Savanna trees that grow above ground can tolerate fire. Because of the availability of grass in the savanna, there are many grazing animals who take advantage of this abundant food supply. 2) Which of the following statements best describes the effect of climate on biome distribution?Savannas are the second largest biome accounting for c. Savanna woodland usually lies in a broad belt adjacent to equatorial rainforest. 1016/j. Study with Quizlet and memorize flashcards containing terms like Which of the following is not a freshwater ecosystem? a. sparse precipitation and extreme cold temperatures. The largest of these biomes are deserts, savanna, and tropical forest. 2) Which of the following statements best describes the effect of climate on biome distribution?The Savanna biome is characterized by an extensive cover of grasses with scattered trees.