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Allisa [31]
3 years ago
7

Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spin

dles.
Biology
2 answers:
elena-s [515]3 years ago
7 0

Answer: Option C) bivalents

Explanation:

In mitosis, no bivalents are formed due to no crossing over of genetic material between chromatids, unlike meiosis where bivalents are formed during Chiasma

Fantom [35]3 years ago
5 0

Answer:

c. bivalents.

Explanation:

In Meiosis a bivalents are formed during the first stage of meiosis which is the prophase. The bivalent consist of a paired chromosome and four chromatids i.e two chromosomes in a tetrad. one chromosome comes from each parent.

In mitosis, a bivalent is not formed. There is the presence of chromatids, homologs, centromeres and spindles during mitosis and meiosis.

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Is salad, steak, and grapes, biotic
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Which describes an example of ecological succession?
irinina [24]

\huge\boxed{\fcolorbox{cyan}{orange}{❥ Answer}}

Ecological succession is the gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing.

<h3><u>There are two main types of succession, primary and secondary</u><u>:</u><u>-</u></h3>

Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.

Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. For example, after felling trees in a woodland, land clearance or a fire.

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The species living in a particular place gradually change over time as does the physical and chemical environment within that area.

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