Answer:
The organisms in which are able to adapt and become stronger.
Explanation:
In Darwin's theory, only the strongest and capable of adaption survive to natural challenges.
C. Observation because you observe the information
The generation of an action potential in a neuron requires the presence of<span> voltage-gated channels, which are </span><span> a class of transmembrane proteins that form ion channels that are activated by changes in the electrical membrane potential near the <span>channel.</span></span>
Hi there! I hope I'm not late. The answer is D and E. I just got it right. Hope this helps ;)
Birds were a major widespread during this time period therefore the answer is the last option