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11) Natural selection is the name given to:

13) How many chemical bases make up DNA?

9) Which of the following is **not** evidence for a large impact on Earth 65 million years ago?

5) What is the Cambrian explosion?

Fungi cannot be decomposers since they secrete enzymes for digestion

Part A of the mushroom bellow is called the ____________, and part E is called __________- mushroom (1).png 

What is the most distinctive characteristic of the phylum Annelida? [BLANK-1]

Select the organism(s) that belong to the class Bivalvia

Ascaris are hermaphrodites

Tapeworm have a simple digestive system