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storchak [24]
3 years ago
7

Briefly explain the characteristics of invertebrates?​

Biology
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

Invertebrates share four common traits:

They do not have a backbone. They are multicellular. All the cells have different responsibilities in keeping the animal alive. ... They reproduce by two reproductive cells, or gametes, coming together to produce a new organism of their species.

Explanation:

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If flies that are heterozygous for all three traits are crossed, what proportion of the offspring would you expect to be heteroz
Archy [21]

Answer:

\frac{1}{8}

Explanation:

If flies that are heterozygous for all three traits are crossed; e.g HtHtHt crosses with HtHtHt. The proportion of the offspring that would be expected to be heterozygous for all three traits will be: 1/8 because 50% (0.5) of their offspring will be heterozygous for just one trait. Therefore for three traits; we have (0.5)³= 0.125

0.125 is equivalent to \frac{1}{8}

From the table, the area of the asterisk region illustrate the traits that are heterozygous in the offspring.

= \frac{8}{64}

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Reinforcement favoring reproductive isolation is required for both parapatric and sympatric speciation.

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Hope this helps

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