Because most living things are made of or contain carbon. Living organisms need carbon to live, grow and reproduce.
Basically, all living organisms contain carbon and need it to survive and reproduce.
Answer:
the gas bladder in fishes as it can help them to maintain their buoyancy in water
Light, H2O, CO2 -> photosynthesis -> glucose, O2 -> cellular respiration -> ATP -> muscle contraction -> win
<span>Usain Bolt can run the 100 meter dash in record time because of this explanation and this will be the answer.</span>
<span>So based on your solution its letter A.</span>
Some of the organisms have evolved in such a way that they remain inactive when the predator populations are active.
Adaptive theory of sleep suggests that the prey population prefer to sleep when (in this case, at night) the predators are most active. The prey population use this time in taking rest and restoring energy for other works. As the prey population is inactive and remained protected in safe places, they are less likely to be predated.
Hence, the correct answer is adaptive theory of sleeping.
