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mrs_skeptik [129]
3 years ago
12

Explain how protoadry prevents self polllination​

Biology
1 answer:
NeTakaya3 years ago
5 0

Explanation:

Protandry - Male reproduction organ/anthers androecia/ stamens mature earlier than female reproduction organ/ carpels/ stigma/ pistil/ gynoecium in a flower. (ii) Self sterility - pollen grains are sterile to stigma of the same plants or same flowers.

I hope it's helpful for you.....

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The contracting and relaxing of the heart is known as the?
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Why did humans hunt seals nearly to extinction?
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Population A consists of 100 hens that are fully isogenic and that are reared in a uniform environment. The average weight of th
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Answer:

a. the environmental variance (VE) = 3.5 g ²

b. 17.5 g ² for population

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Explanation:

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replacing data:

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c. Regarding the heritability of broad sense (H2) in population B, we can reach the result with the data previously obtained like this:

H2 = VG / VT = 17.5 / 21.0 = 0.83

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Why are invasive species considered a threat to native wildlife?
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Epithelial cells are most likely to be found where in your body?
sattari [20]

Answer:

Epithelial cells also line the inside of your throat, intestines, blood vessels, and all your organs. They are a barrier between the inside and outside of your body and are often the first place that is attacked by viruses as they begin their invasion deeper into the body.

Explanation:

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