Match each phylum or class to its correct characteristic.

mammals
rotifera
cnidaria
mollusca
nematocyst
arrowright
radula
arrowright
mammary glands
arrowright
cilia in circular arrangement
arrowright

Answer is:

1) mammals - mammary glands.

2) Rotifera - cilia in circular arrangement.

3) Cnidaria - nematocyst.

4) Mollusca - radula.

Mollusca is a large phylum of invertebrate animals.

Cnidaria are mostly marine animals.

Rotifera are phylum of microscopic pseudocoelomate animals.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

c is the correct answer!