Probably because of history relation.
All living things need to make ENERGY to function and live. It is needed to grow, reproduce, move, and to work.
Whether...
Plants need energy to make produce oxygen and glucose to...
Humans need energy for respiration(breathing out CO2 and taking in oxygen) to...
Bacteria too...for something that I can't think of at the moment:P
Leg bones
• long and skinny
Skull bones
• thin and wide
Many skull bones are carved. Leg bones enable walking and standing. While skull bones are designed to protect the brain.
Letter D is the correct answer.
Disruptive selection, also known as diversifying selection, is a type of natural selection that drives a population apart. This type of selection is based on the variation of a trait in a population. For instance, Garter snakes that have a different coloration pattern behave in different manners when threatened.
<span>D is the correct answer. Metabolism is formed of two processes, anabolism, which builds new structures, for example, proteins, and catabolism, which breaks down existing structures. Catabolism breaks down large molecules like lipids into smaller ones like fatty acids.</span>
