Answer:
The plasma membrane is made up by a phospholipid bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment. Only relatively small, non- polar materials can easily move through the lipid bilayer of the plasma membrane.
Explanation:
Creating or controlling a situation by causing something to happen rather than responding to it after it has happened.
Answer:
#male gametes are formed
#generative nucleus divides
#fertilization takes place
#pollen tube grows
# zygote is formed
#embryo is formed
