AP BIOLOGY

ECOLOGY

BIOMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an adaptation of coniferous trees in the taiga?
A
They have a shallow root system, due to the acidic soil.
B
They have leaves that retain water, due to their shape and waxy coating.
C
They have a unique overall shape in order to accumulate snow, which acts as a heavy insulating layer.
D
All of the above
Explanation: 

Detailed explanation-1: -Conifers have adapted to survive the long, cold winters and short summers of the taiga. Their needles contain very little sap, which helps prevent freezing. Their dark color and triangle-shaped sides help them catch and absorb as much of the sun’s light as possible.

Detailed explanation-2: -Animals of the desert have adapted many different ways to prevent water loss. Reptiles have thick, scaly skin that prevents water loss. Amphibians survive by estivating, or burying themselves in the ground and sleeping through the dry season.

Detailed explanation-3: -Arctic tundra is located in the northern hemisphere, encircling the north pole and extending south to the coniferous forests of the taiga. The arctic is known for its cold, desert-like conditions. The growing season ranges from 50 to 60 days.

Detailed explanation-4: -The leaves of forest trees have adapted to cope with exceptionally high rainfall. Many tropical rainforest leaves have a drip tip. It is thought that these drip tips enable rain drops to run off quickly. Plants need to shed water to avoid growth of fungus and bacteria in the warm, wet tropical rainforest.

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