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Flura [38]
3 years ago
13

The blastocoel and blastopore are both found in the blastula stage of development.

Biology
1 answer:
Andreyy893 years ago
6 0

Answer:

False

Explanation:

Cleavage in zygote forms a hollow ball of cells known as a blastula. The blastocoel refers to the fluid-filled cavity present in the blastula stage of early embryonic development.

Blastula undergoes gastrulation during which some of the cells exhibit inward movement and form a sac. The blastopore refers to the opening of this sac present in the gastrula stage of embryonic development.

Blastopore of gastrula develops into the mouth in protostomes and becomes anus in deuterostomes.

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Explanation:

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2.

An eclipse is the result of the total or partial masking of a celestial body by another along an observer's line of sight. Solar eclipses result from the Moon blocking the Sun relative to the Earth; thus Earth, Moon and Sun all lie on a line. Lunar eclipses work the same way in a different order: Moon, Earth and Sun all on a line. In this case the Earth's shadow hides the Moon from view.Lunar and solar eclipses occur with about equal frequency. Lunar eclipses are more widely visible because Earth casts a much larger shadow on the Moon during a lunar eclipse than the Moon casts on Earth during a solar eclipse. As a result, you are more likely to see a lunar eclipse than a solar eclipse.

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4 0
3 years ago
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7 0
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Sindrei [870]
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3 years ago
Which line points to the myelin sheath?
UkoKoshka [18]
4.

Myelin Sheath is an insulator on the axon

Hope that helps! :)
8 0
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Flura [38]

Answer:

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Explanation:

please,

7 0
2 years ago
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