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sasho [114]
3 years ago
11

Explain the Importance of female salmon digging a hole in bottom of the stream?

Biology
1 answer:
Neko [114]3 years ago
7 0

Answer:

Female salmons create the hole where eggs are laid and fertilized by male sperm cells.

Explanation:

Salmon are fishes which live in salt water oceans and fresh water streams. They return to their home stream and lay their eggs at the bottom of the stream by digging it. This is usually done by The female salmon turning on her side and beating the river bed with powerful sweeps of her tail. She does this until the hole is a foot and a half deep. She then lays the egg there which is then fertilized with speed by the male.

She then dies in the same place in which she was born about 5 years earlier.

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In the initial days of pregnancy, a woman often feels no symptoms at all. Women with ectopic pregnancies often
tatiyna

Answer:

See explanation.

Explanation:

The initial days and even weeks of pregnancy may happen without a woman being aware of the pregnancy. Even though the baby grows quickly, it starts out as just a fertilized egg. So it takes a while to be noticed. And there is plenty of room at first.

But with an ectopic pregnancy, the baby attaches, instead of in the uterus, outside of the uterus. In most cases, the baby attaches inside the fallopian tube. Outside of the uterus is not designed to provide support and space for the baby. As growth occurs, it can cause severe problems. This is dangerous and can cause bleeding, pain, and possibly shock of the woman's condition is not identified and treated.  

Hope this helps! Have an awesome day!! :-)

7 0
3 years ago
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In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
How do the retinas of the eyes of night-hunting animals differ from the retinas of animals that hunt during the daytime?
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A) They have more cell rods... hope it helps :)
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Why is it important for historians to study historiography
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Because it helps us understand our past, which in turn allows us to understand our present.
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A. The different length and different sequence are a good indication they are front different genes and probably have different functions.
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