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ExtremeBDS [4]
2 years ago
5

Definition of heart rate

Biology
1 answer:
shepuryov [24]2 years ago
4 0

Answer:

refers to the number of times the heart beats within a certain time period, usually a minute.

Or

it is the speed of the heart beat measured by the number of contractions of the heart

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Answer:

Oxygen

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Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa b
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A phylogeny of the same taxa based only on morphological traits:

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brainly.com/question/16044878

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What organisms are non-flowering plants closely related to ?
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