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astraxan [27]
4 years ago
7

The only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart

are the _____.
A) amphibians
B) fishes
C) mammals
D) reptiles
Biology
1 answer:
Elden [556K]4 years ago
3 0

Answer:

The correct answer is B) fishes

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The flow of information within a neuron is ________, whereas the flow of information between neurons is ________.
Vlad [161]

Answer:

The flow of information within a neuron is intracellular signalling whereas the flow of information between neuron is inter cellular signalling.

Explanation:

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2. Which of the following best describes Pangaea?
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The answer that i'd go with is A.Sunlight
Hope i helped
4 0
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Read 2 more answers
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