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1) LIST THE CHARACTERISTICS THAT UNITE THE MOLLUSCS AND ANNELIDS. 2) Compare the circulatory system of the...

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Biology

1) LIST THE CHARACTERISTICS THAT UNITE THE MOLLUSCS ANDANNELIDS.

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 typesof mammals.

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1 Both annelids and molluscs are bilaterally symmetric triploblastic Have organ system level of organisations coelomate animals Both have complete digestive tract They respirate through gills Their larvae called as trochophore 2 Fish Heart is 2 chamberedone atrium and one ventricle known as venous heart means it contain only impure blood which is sent for purification to the gills The system is single circulatory system    See Answer
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