Which component of bone is responsible for its strength?

1 answer:

6 0

<span>The answer is osteoid. It begins with unmineralized collagen fibers and ground substance. Later it becomes a calcified matrix. The matrix is mainly made of collagen and calcium ions. When not well mineralized, osteoblasts proliferates hence the bone will not have the desired strength. This results to deformation of bone causing rickets</span>

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1. courtship rituals 2. attract a mate 3. internal fertalisation occurs inside the feamales body whereas external fertalisation occurs outside the feamales body 4. <span>Gametes may get washed away 5. the devoloping zygote is protected</span>

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The process of meiosis increases genetic variation when genetic information is exchanged during crossing-over and when alleles a

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The correct answer is random fertilization.
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If meiosis failed to occur in both male and female worms the zygote nucleons would resemble diagram

den301095 [7]

Tetraploidy will occur.

<h3><u>Explanation</u>:</h3>

The process of sexual reproduction is very necessary to maintain the genetic setup of the species over the races.

The normal chromosome content of a cell is called diploid state of cell. Its represented by the expression 2n. The cell division that takes place before the gamete formation is called meiosis. This cell division makes the chromosome number of the cells halved. So haploid cells are produced. Its represented by n.

Now as the gametes fuse, both the n becomes 2n and diploid state is regained.

But if the meiosis don't occur in the gametes, the gametes will remain 2n. So after fertilization, it becomes 4n. This state is called tetraploidy.

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