b. Chondrichthyans c. Ray-finned fishes. d. Placoderms. Guppies are a common aqu

Question

b. Chondrichthyans c. Ray-finned fishes. d. Placoderms. Guppies are a common aquarium fish. They have internal fertilization, and females give birth to young that can swim immediately. Which of the following statements is correct? Select one: a. Most fish reproduce like guppies. b. Guppies reproduce by producing swimming young because they are related to marsupials. c. Most fish reproduce by laying eggs. d. Most fish produce amniote eggs. Which of the following characteristics allowed early gnathostomes to become successful predators? Select one: a. Fins stfened with bone that increased maneuverability and improved gas exchange through the skin. b. Fins stiffened with bone that increased maneuverability and improved gas exchange in the gills. c. Lobe fins that allowed temporary access to land and improved gas exchange through the skin. d. Lobe fins that allowed temporary access to land and improved gas exchange in the gills. Fossils of the earliest tetrapods should

Explanation / Answer

Ans13:

Most fish reproduce by laying eggs unlike guppies. Guppies aren't related to marsupials. Thus Correct choice is

Ans14:

(B) fins stiffened with bone that increased maneuver ability and improved gas exchange in the gills.

Most fish reproduce by laying eggs . (True)

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