On where mitochondria or chloroplast?
Answer: A. Average rainfall has decreased
Explanation:
I might be wrong. sorry if i'm wrong
The correct answer is B.
Channels and pumps are transmembrane proteins that create hydrophilic tunnels across the membrane. This allows molecules to be diffused through them. The channels and pumps are highly selective and only allow the diffusion of specific molecules. The channel's structure blocks the contact of the molecule with the head and tail of the phospholipids that form the membrane. As we said, the channels and pumps are proteins, so they are formed by amino acids. Therefore, the molecules passing through channels and pumps, only come in contact with the amino acids.
C. on the tongue,lining of the cheeks and on the roof of the mouth.
Answer:
Growth rate can be calculated by dividing the change in the number of organisms from one point in time to another by the amount of time in the interval between the points of time.
There isn't really a definition for this.
