A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
The answer to your question is Letter C <-- ANSWER
Steroid is a molecule made up of four carbon rings with other atoms bonded to those rings.
Hope this Helps
<span>C Rodents and rabbits are most closely related to primates. </span>
Enzymes bind with chemical reactants called substrates
