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spayn [35]
3 years ago
5

During which of these stages are the pulmonary and aortic valves open? relationships between the ecg and left chamber pressures

during the cardiac cycle. phase 1 phase 2a phase 2b phase 3
Biology
1 answer:
Aloiza [94]3 years ago
4 0
Phase 2b.......................................................................................
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Explain why organisms are more likely to be well preserved in mud than in sand? Justify your response in
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Explanation:

Organisms are well preserved in mud because mud has high water holding capacity. It retains water and does not allow oxygen flow which can destroy the remains of organisms. There are some microbes that preserved whose growth are enhanced in water related environment like mud.

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vampirchik [111]

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