The answer is letter A. evolution always improves organisms. Darwin did not state this idea because he observed that even if evolution happened to species, there were some species that failed to adopt on the new environment. The other choices are his ideas of natural selection which states that an organism can survive if it has heritable traits that can adopt with the environment.
You’re talking about the endoplasmatic reticulum :)
Answer:
Cellular respiration takes place in all types of cells, of all organisms.
It occurs in <u>autotrophs</u> (plants) and <u>heterotrophs</u> (animals).
<em>Cellular respiration begins in the cytoplasm of cells. It is completed in mitochondria.</em>