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xenn [34]
3 years ago
11

Some species of jellyfish use jet propulsion to get around. True or False

Biology
2 answers:
Anastasy [175]3 years ago
8 0

Answer:

The correct answer is "True".

Explanation:

Some species of jellyfish use a form of jet propulsion to swim and get around the sea. For instance, the jellyfish <em>Polyorchis penicillatus</em> contracts its subumbrellar swimming muscles to gain power, which it uses as mechanical energy to perform a jet cycle while swimming. Some studies in this regard have been performed, measuring even the amount of energy needed in the muscles for the jellyfish to swim.

irina [24]3 years ago
7 0

Answer:

True

Explanation:

Jelly fish belongs to the group of animals known as the coelenterates. They are an invertebrates with no eyes, brain, bones or heart and are made up of about 95% water.

Jelly fish moves through water in two ways:

  • Swimming by jet propulsion using a structure known as coronal muscles.
  • By attaching themselves to another objects that moves through water currents.

Hence, the correct answer is 'true'.

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A scientist studied the effect of exposing DNA to various wavelengths of ultraviolet light and determined the number of copying
Murljashka [212]

Answer:

C. 275 nm

Explanation:

At 275 nm of ultraviolet wavelengths causes mutation in a skin cell because at 275 nm of wavelength, maximum DNA Copying Errors occur in the cells that leads to mutation in the cell. A mutation is a kind of change that occurs in the DNA, due to two reasons, due to mistakes that is occur when the DNA is copied or as the result of environmental factors such as ultraviolet radiations.

6 0
3 years ago
If we prіck a plant and an animal cell, which one of them would lose its shape? and what's the reason
AleksAgata [21]

Answer:

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Explanation:

6 0
3 years ago
Which photograph illustrates mutualism?<br> A) <br> B) <br> C) <br> D)
Dmitrij [34]

Answer:

B

Explanation:

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5 0
3 years ago
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lianna [129]

Answer:

The link between some of the given contexts is characterized below.

Explanation:

  • The soil, as well as the water, have been strongly interlinked. Implementation of biodiversity conservation just to focus on improving soil structure also strengthens water supplies.
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8 0
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The
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Answer:

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Explanation:

7 0
3 years ago
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