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TEA [102]
3 years ago
14

Convection occurs because heated material becomes ____________________. A less dense and rises B denser and rises C denser and s

inks D less dense and sinks
Biology
1 answer:
AURORKA [14]3 years ago
5 0

Answer: A less dense and rises

Explanation:

Convection is a type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases due to presence of less number of mmolecules per unit volume. As the hot liquid becomes less dense, it starts moving upwards.

Thus convection occurs because heated material becomes less dense and rises.

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shusha [124]

Answer:

Explanation:

1. Organ

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3. B

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Anna [14]

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In biology, petri dishes are frequently used to produce microorganisms like bacteria, yeast, and mold. The organisms that grow on solid or semisolid surfaces are best suited for it. To reduce the chance of contamination from airborne spore particles landing on them and to avoid the buildup of water condensation that could disrupt or impair a culture, they are often covered and stored inverted.

Aside from that, incubating the media in the normal position could result in the media drying out, which would interfere with the ideal conditions for microbial growth and increase microbial count mistakes. Since the labels are put underneath the plates rather than on the lids, placing plates upside down also makes them easier to handle and recognize.

To learn more about petri dishes. Click, brainly.com/question/12406059

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1 year ago
Can someone help me please this is due today I asked 3 times (monohybrid crosses)
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Answer:

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10. Bb

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Explanation:

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