No they can not
Glad I could help
Answer: (B) Paracrine signaling
Explanation: Paracrine signaling occurs between cells that are relatively within a short distance apart. The signaling triggers quick responses and can last only for a short period of time because of the wearing-off of the paracrine ligands (neurotransmitters).
Cells that exhibit paracrine factors release them into the immediate extracellular environment.
Answer:
The correct answer is option d.
Explanation:
An extinct species of australopithecine, that is, Australopithecus africanus was the first species to be illustrated. It was of gracile or slender build and was considered to have been the direct ancestor of modern humans. Like modern man, the A. africanus did stood upright and walked upright, and were having free hands to use. However, they were smaller in height and lighter in weight in comparison to modern man.
The independent variable is if the plants have light or not.