Members of the ____ lizard genus are commonly used as model systems for studies of ecology and evolutionary

biology.



a. Ichthyostega
b. Anolis
c. Dunkleosteus
d. Eusthenopteron
e. Archaeopteryx


ANSWER: b

Biology & Microbiology

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The ____ represent an internal respiratory system

a. skin folds on an amphibian b. broad, flat body of a flatworm c. branched gill filaments d. folds within human lungs e. gills on a salamander

Biology & Microbiology

In Waller's experiment, he placed one front paw and one back paw of a dog into pans containing

a. carbon dioxide. b. iron. c. mercury. d. pure water. e. salt solution.

Biology & Microbiology

Cells within the morula ____

a. are identical b. are not differentiated c. number over 1000 d. each contain a different portion of the egg’s cytoplasm e. are each the same size of the original egg

Biology & Microbiology

Dikaryotic cells are denoted as:

a. n + n. b. n ? n. c. n. d. 2n. e. 2n ? n.

Biology & Microbiology