Which of the following are important biotic factors that can affect the structur

Question

Which of the following are important biotic factors that can affect the structure and organisation of biological communities? A) light intensity, seasonality B) precipitation, wind C) temperature, water D) nutrient availability, soil pH E) predation, competition The main reason polar regions are cooler than the equator is that ___ A) sunlight strikes the poles at a lower angle B) there is more ice at the poles C) the poles are farther from the Sun D) the poles are permanently tilted away from the Sun E) the polar atmosphere is thinner and contains fewer greenhouse gases In the figure above, which direction will have a desert biome A) West B) South C) North D) Both West and East E) East In the figure above, which direction will have a rain shadow? A) East B) South C) Both West and East D) North E) West In temperate lakes, the surface water is replenished with nutrients during turnovers that occur in the _____. A) spring and summer B) autumn and spring C) summer and autumn D) summer and winter E) autumn and winter

Explanation / Answer

Answer:

96. (E) Predation, competition

Explanation:

Predation controls community organization because predators limit herbivores, which in turn limit plants and nutrient levels through their uptake of nutrients during growth and reproduction. Competition involves avoidance between individuals or aggressively excluding the other.

97. (A) sunlight strikes the poles at a lower angle

Explanation:

Polar regions receive less intense sunlight since the sunrays hit at an oblique angle.

98. (E) East

Explanation:

A rain shadow is an area (land) that has been forced to become a desert due to the obstruction of adequate rainfall by mountain ranges.

99. (A) East

Explanation:

Same as 98.

100. (B) autumn and spring

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