Question

all organisms need nitrogen to make proteins. plants usually obtain their nitrogen from nitrates in the soil. animals get the nitrogen they need by consuming other organisms. some rainforest plants, like the pitcher plant pictured below, are called carnivorous plants. they attract insects with special structures containing a sweet - smelling nectar. when insects enter, they become trapped. the plants then collect the remains as the insects decay. what is the best explanation for why some plants are carnivorous? ○a. it is an adaptation for living in nitrogen - poor soils ○b. it is an adaptation to drive away competition from insects ○c. it is an adaptation to drive away competition from other plants. ○d. it is an adaptation to reproduce in tropical rainforests

Explanation:

The text states organisms need nitrogen for proteins; most plants get it from soil nitrates. Carnivorous plants trap insects and use their decaying remains, which is an adaptation to access nitrogen when soil levels are low. Options B, C, D are incorrect because the behavior does not drive away competition or relate to reproduction.

Answer:

A. It is an adaptation for living in nitrogen-poor soils