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Genrish500 [490]
3 years ago
12

An earthworm receives support and shape from its fluid-filled cavity. It has _____.

Biology
1 answer:
Alexeev081 [22]3 years ago
3 0

An earthworm receives support and shape from its fluid-filled cavity. It has Hydroskelton

Explanation:

The muscle of earthworm encloses with two layers of muscle which is circular and longitudinal. There is fluid cavity between digestive part and muscle. it is called coelom and fluid is coelomic fluid. This fluid work as hydrostatic skeleton.

It provides resistance to muscular contraction. It helps the earth worm to applying the force and change the shape. Mostly hydrostatic Skeleton organism has more or less cylindrical. This type of Skeleton found in soft bodied invertebrates.  

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Indicate whether the following outcomes of cell division are observed in mitosis only, meiosis only, or both mitosis and meiosis
serious [3.7K]

Answer:

A. Both in mitosis and meiosis (II)

B. Mitosis

C. In both

D. Meiosis

E. Mitosis

Explanation:

Prior to every case of cell division in both mitosis and meiosis, the cell always ensures to duplicates its contents including its chromosomes. In both cases of cell division, the sister chromatids separates, apart from in meiosis I where homologous chromosomes separates to opposite poles. Only one cellular division occurs in mitosis which is involved in the growth and development of the diploid individual but in meiosis, two divisions takes place in the gametes (both male and female) to ensure that the haploid number of chromosomes is transfered from both parents each to the offspring ensuring a constant diploid offspring. Thus a diploid parent cell always produces a haploid daughter cell in the gametes during meiosis. In mitosis, the daughter cells are always identical to the parents cells.

4 0
3 years ago
On the ocean floor, there are long mountain ranges called mid-oceanic ridges. Which description explains how these geological st
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Answer:

B a diverging boundary where two ocean plates move apart from one another

Explanation:

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3 0
3 years ago
Which came first: sexual or asexual reproduction?
cupoosta [38]

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8 0
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Explanation:

6 0
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D. No, because leaky membranes do not allow NADH and FADH2 to donate their electrons to the electron transport chain

Answer:

B. No, because with a leaky membrane, the proton gradient cannot be maintained

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               ADP + Pi -----------→ ATP.

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5 0
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