How many of the following are characteristics of at least some members of the phylum Cnidaria?
1. a gastrovascular cavity
2. a polyp stage
3. a medusa stage
4. cnidocytes
5. a pseudocoelom
A) 1
B) 2 and 3
C) 3, 4 and 5
D) 1, 2, 3, and 4
E) 1 and 2
Answer: D
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Which are the products of the second part of glycolysis?
a. Two pyruvate molecules b. NADH only c. ATP and NADH d. ATP only
Glycogen is a polysaccharide used for energy
storage by
a. plants. b. animals. c. protists. d. bacteria. e. archaea
A substance that is resistant to changes in pH is called a buffer
__________________ Indicate whether the statement is true or false.