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1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded as close relatives to Choose a or b a. early tetrapods. b. Pikaia.

1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded as close relatives to Choose a or b a. early tetrapods. b. Pikaia.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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please help me answer problems #1-5. thank you!

1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded as close relatives to Choose a or b a. early tetrapods. b. Pikaia. 2. Amphioxus serves as a modern, living analog for the extinct cephalochordate Choose a or b a. tunicate. b. Pikaia. 3. Devonian fish moved into freshwater habitats approximately Choose a or b a. 400 million years ago (mya). b. 540 million years ago. 4. Bone probably first evolved to Choose a or b a. provide fish with jaws in order to be fearful predators. b. store calcium to provide strong muscle power when released to the bloodstream. 5. The earliest tetrapods first emerged from shallow water habitats Choose a or b a. around marine (salt water) coastlines. b. in freshwater swampy areas.
Transcribed Image Text:1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded as close relatives to Choose a or b a. early tetrapods. b. Pikaia. 2. Amphioxus serves as a modern, living analog for the extinct cephalochordate Choose a or b a. tunicate. b. Pikaia. 3. Devonian fish moved into freshwater habitats approximately Choose a or b a. 400 million years ago (mya). b. 540 million years ago. 4. Bone probably first evolved to Choose a or b a. provide fish with jaws in order to be fearful predators. b. store calcium to provide strong muscle power when released to the bloodstream. 5. The earliest tetrapods first emerged from shallow water habitats Choose a or b a. around marine (salt water) coastlines. b. in freshwater swampy areas.
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