B. They compare traits that species have
<span>both excitation and inhibition</span>
The answer is true ...............good luck
Answer:
Red algae - acquired plastids by secondary endosymbiosis
Explanation:
Red algae are believed to have undergo a primary endosymbiosis event. Then a second endosymbiosis event created a large group known as heterokonts. During the primary endosymbiosis event red algae acquire their plastids.
I am going with x-rays; it is the most visible to the naked eye out of all the choices.