Competition is an interaction between organisms or species in which both the organisms or species are harmed. Limited supply of at least one resource (such as food, water, and territory) used by both can be a factor.
The answer is sensations. Sensation alludes to the way toward detecting our condition through touch, taste, sight, sound, and smell. This data is sent to our brains in crude frame where discernment becomes possibly the most important factor. Discernment is the way we decipher these sensations and hence comprehend everything around us.
Active transport is the movement of materials against a concentration difference; requires energy
Facilitated diffusion is when molecules pass across the membrane through the cell membrane channels.
So it would be Q4. Both involve proteins in the cell membrane
D base because the salt and acid form bases they are both ionic
deoxyribonucleic acid, is defined as a nucleic acid that contains the genetic code.