Hello!
The body of a sponge is not very complex, mainly because it has no cells. It has 2 outer layers and supportive needles, but no cells!
Enjoy.
~Isabella
Answer:
They use it in photosynthesis
Explanation:
When animals practice cellular respiration, the biproducts, such as CO2, are released into the environment. When a plant practices CR, the biproducts are immediately used as key reactants in photosynthesis.
Answer:
Explanation:
A sperm and an egg each contain one set of 23 chromosomes. When the sperm fertilizes the egg, two copies of each chromosome are present (and therefore two copies of each gene), and so an embryo forms.
80 percent of animals are insects!
B because it is the opposite of it sitting in the cold
