Question

1. which climax community would result from an area that has an annual precipitation of 150 cm and an average temperature of 0°c?

chart: annual precipitation vs. temperature for various biomes
a. tundra
b. taiga
c. temperate forest
d. savanna

1. which of the following is true?

a. deserts are always hot and dry.
b. tropical rainforests are always found at the tops of tall mountains.
c. temperate forests are cooler and drier than tropical rain forests.
d. tundra is warmer and wetter than the taiga.

1. many of the biomes that exist on earth can be found in ecoregions in the western parts of north carolina. what is the primary reason for the existence of such a wide range of habitats in this area?

a. the types of rocks that make up the mountains
b. the wide range of altitudes (elevations) of the mountains
c. the rivers and lakes in the mountain areas
d. the wind and water erosion of the mountains

1. which of the following statements about grasslands is true?

a. grasslands receive as much rainfall as tropical rain forests but aren’t as warm.
b. grasslands are colder than the taiga but receive more precipitation.
c. grasslands are as warm as temperate forests but don’t receive as much precipitation.
d. grasslands exist within a very narrow temperature range, yet experience a wide range of precipitation.

1. place the levels of organization in order from the smallest to the largest.

a. community, organism, ecosystem, population, biosphere
b. organism, population, community, ecosystem, biosphere
c. organism, community, ecosystem, population, biosphere
d. biosphere, ecosystem, organism, community, population

1. which example describes an abiotic factor that could impact the diversity of an ecosystem?

a. an increase in prey can impact the number of predators in an ecosystem
b. an increase in the amount of acid rain can change the ph of the soil in an ecosystem
c. the introduction of an invasive species can change the amount of available resources in an ecosystem
d. the competition for food can impact the survival rate between members of the same species in an ecosystem

Explanation:

Question 7

To determine the climax community, we analyze the given precipitation (150 cm) and temperature (0°C) using the biome graph. Tundra has low precipitation and cold temps, taiga has moderate precipitation (around 100 cm) and cold temps, temperate forest has higher precipitation (100 - 200 cm) and moderate temps (around 0 - 20°C), savanna has moderate precipitation and warm temps. With 150 cm precipitation and 0°C, temperate forest (C) fits. Wait, no—wait, the graph: Taiga is at 0°C and ~100 cm? Wait, no, recheck. Wait, the x - axis is average temperature (°C), y - axis annual precipitation (cm). At 0°C (x = 0), looking at y = 150. The biome for 0°C and 150 cm: Taiga? No, temperate forest? Wait, the graph labels: Taiga is around 0°C and ~100 cm? Wait, maybe I misread. Wait, the options: A. tundra (cold, low precipitation), B. taiga (cold, moderate precipitation ~100 cm), C. temperate forest (moderate temp, moderate - high precipitation), D. savanna (warm, moderate precipitation). Wait, 0°C is cold, 150 cm is moderate - high. Wait, maybe the graph: at 0°C (x = 0), the biome with y = 150. Wait, maybe the correct answer is B? No, wait, let's re - evaluate. Wait, the problem says annual precipitation 150 cm, average temp 0°C. Taiga has average temp around - 10 to 0°C and precipitation 40 - 100 cm? No, maybe the graph shows that at 0°C and 150 cm, it's temperate forest? Wait, no, maybe the answer is B? Wait, no, let's check the options again. Wait, maybe I made a mistake. Let's think about biomes: Tundra: cold (below 0°C), low precipitation. Taiga: cold (0°C or below), moderate precipitation (25 - 100 cm? No, some sources say 40 - 100 cm). Temperate forest: moderate temp (0 - 20°C), moderate - high precipitation (75 - 200 cm). Savanna: warm (20 - 30°C), moderate precipitation (50 - 150 cm). So 0°C (cold) and 150 cm (moderate - high). Wait, maybe the graph in the problem has taiga at 0°C and ~100 cm, temperate forest at 0 - 20°C and 100 - 200 cm. So 0°C and 150 cm would be temperate forest? But 0°C is on the lower end of temperate forest. Wait, maybe the answer is B (taiga) is wrong, C (temperate forest) is correct? Wait, no, maybe the graph shows that at 0°C (x = 0) and y = 150, it's temperate forest. So the answer is C? Wait, no, let's check the options again. The options are A. tundra, B. taiga, C. temperate forest, D. savanna. So with 150 cm (y) and 0°C (x), the biome is temperate forest (C)? Wait, maybe I was wrong earlier. So the correct answer is C. Temperate forest.

• Option A: Deserts can be cold (e.g., Antarctic desert), so "always hot" is wrong.
• Option B: Tropical rainforests are in low - latitude, warm, wet areas, not at mountain tops (which are cold), so wrong.
• Option C: Temperate forests have lower temp and less precipitation than tropical rainforests (tropical rainforests are warm and very wet), so this is true.
• Option D: Tundra is colder and drier than taiga, so "warmer and wetter" is wrong.

• Option A: Rock types don't directly create diverse habitats; they affect soil, but not as much as altitude.
• Option B: Wide range of altitudes (elevations) in western NC mountains leads to different climates (temp, precipitation) at different heights, creating diverse habitats (e.g., low - elevation forests, high - elevation tundra - like areas), so this is correct.
• Option C: Rivers/lakes are important but not the primary reason for wide - range habitats in a mountainous area.
• Option D: Wind/water erosion shapes landforms but not the main reason for diverse habitats.

Answer:

C. temperate forest

Question 8