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Alexeev081 [22]
3 years ago
11

Primary succession takes much longer than secondary succession because it involves _________

Biology
2 answers:
olga_2 [115]3 years ago
6 0

Answer:

Rocks or lava

Explanation:

In 1° succession there is no soil.. And the process of soil formation take very long time.

In 1° succession rocks or lava is present and lichens, soil erosion, wheathring of rocks helps in soil formation.

borishaifa [10]3 years ago
5 0

Primary succession takes much longer than secondary succession because it involves time for weathering of rock and development of the soil horizons.

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c. the virus inserts its genetic information into the host

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B. copies of the virus are immediately released from the host

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You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the
krek1111 [17]

Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

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A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

  • Chromatids, which are chromosomes, are found in the cell poles.
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  • Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

<em>     a and d. In the other phases described, </em><em><u>S and G1,</u></em><em> no chromosome distribution is observed at the poles.</em>

<em>     c. A somatic cell does not experience </em><em><u>meiosis</u></em><em>.</em>

6 0
2 years ago
Scientific evidence documents the pattern of evolution. The evidence exists in a variety of categories, including direct observa
anzhelika [568]

Answer:

Direct observation of evolutionary change: creation of drug-resistant bacteria.

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3 years ago
In mosses gametes are produced by _____; in ferns gametes are produced by _____. In mosses gametes are produced by _____; in fer
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Answer:

In mosses gamete are produced by MITOSIS; In ferns gametes are produced by MITOSIS.

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Ferns usually grow way bigger than mosses and they are both primitive plants. In ferns the gametes, sperm and eggs are formed by mitosis when there is a suitable place for development.

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3 years ago
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