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gladu [14]
3 years ago
14

Blood returning to the mammalian heart in a pulmonary vein drains first into the _____.

Biology
1 answer:
WARRIOR [948]3 years ago
6 0
Is there like options in this question?
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chloroplast

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Can someone please help me on these questions?
DiKsa [7]

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B.

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Echinoderms _____. _____ Select one: a. have an exoskeleton of hard calcareous plates b. often use tube feet to move around in t
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Tube feet are tiny tubular projections of echinoderms on the underside (oral side). They are a member of the echinoderm water vascular system.

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Hence, the correct option is B.

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3 years ago
Human blood types are determined by the types of proteins, A or B, found in the blood. People with type O blood have neither A n
andrew11 [14]

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The probability is 0%

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Why does cells need water to survive
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