D. which is also known as osmosis a form of facilitated diffusion (doesn't require energy)
Answer:
Letter A. G-protein coupled receptor
Explanation:
G protein-coupled receptors are a large protein family of transmembrane receptors that pick up extracellular signals and activate signal transduction pathways within the cell. They start this transduction through a chain of events triggered by phosphorylation.
In this question, we may be confused by the options that involve protein kinase, but we have to consider only cell surface receptors, as the request in question.
B amniotic eggs which is one of the similarities they share with birds (one of the many similarities and cause birds and reptiles to be on the same branch)
Explanation:
red blood cells,white blood cells and platelets