The mass number is the sum of the number of protons and number of neutrons the atom has.
So, we can write the equation as:
x + 20 = 40
x = 20 neutrons.
Mitochondria are a<span>n organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).</span>
Cutoff signals are signals used by the animals for communication between them. These signals are behaviors. Examples are: the animal freezes, turns the back to other animals, moves away, ....
Cut-off signals are usually given after a conflict. One reason animals use cutoff signals is to:
D. encourage compromise between potential adversaries
If cut-off signals are not respected, conflict will escalate.
Answer:
i personaly dont know but carbohydrates are molecouls with sugar and if im right theres only one type of carbohydrate the other ones are lipids proteins and nuclier acids only this that cant undergo cellular respiration is lipids becouse lipids are a molecoule of fat
Explanation:
but im not sure this is just my theory
DNA replication is called transcription, because the new strands are transcribed (copied) from the original molecule. Hope this helps!!