In: Biology
1) LIST THE CHARACTERISTICS THAT UNITE THE MOLLUSCS AND ANNELIDS.
2) Compare the circulatory system of the heart for fish, amphibians, reptiles, birds, and mammals.
3)Define a mammal and distinguish between the three major types of mammals.
1.
2. Fish -
Amphibians -
Reptiles-
Birds -
Mammals -
3. Mammals -
3 major types of mammals are prototherians , metatherians, eutherians
Prototherians-
Metatherians-
Eutherians-