Answer:
D
Explanation:
Sexual reprduction is when a sperm cell fertilzes an egg cell.
Answer:
This is an English server, sorry
Explanation:
They all develop gills, slits and tails
I think it'd be cell, tissue, organ, organ system, organism.
I hope this helps!
ATP is adenosine triphosphate, it is like a fully charged battery in a cell, ADP is basically ATP that has been drained of its energy from a chemical reaction. It is like a dead battery that can be recharged later ;)
