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rodikova [14]
3 years ago
11

How do human sex chromosomes keep the numbers of males and females roughly equal?

Biology
1 answer:
Gnesinka [82]3 years ago
3 0

Answer:

It is simple mathematics , because sex chromosome XX are found in female and XY in male the remaining 22 pairs are the same in both.

Explanation:

I looked it up. I'm sorry if it's wrong.

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Why are all of the pigments not visible in a typical leaf?
igor_vitrenko [27]

The set of Wavelength is absorbed by pigment. So in a typical leaf some pigment can’t be visible.

Explanation:

There are mainly three types of key pigments in photosynthesis.  These three key pigments are Chlorophyll a, Chlorophyll b, and β-carotene. Those set of wavelengths which is not absorbed by pigment and finally it is reflected and that reflected light is what we see as a color.

The reason behind color of plant looking green because it contains huge amount of chlorophyll a and b molecule. It reflects the green light.

8 0
3 years ago
The process shown here is called ____. The resulting offspring, Dolly, would be genetically identical to the ____. This is becau
Mama L [17]

Answer:

cloning, Finn-Dorset, DNA, nucleus

Explanation:

So basically what they're doing here is they're taking the cytoplasm of a cell of the Scottish Blackface sheep (maybe a lamb?, whatever)/removing the nucleus inside that cell and instead inserting the nucleus of the Finn-Dorset sheep. Then they insert that "integrated" cell (so to speak) into a surrogate ewe so that the blastocyst can evolve and develop into Dolly (the lamb/sheep).

The process is cloning. The resulting offspring would be genetically identical to the Finn-Dorset (sheep/lamb) b/c the nucleus is coming from that sheep & the nucleus has the genetic material (DNA).  Hope ya found this helpful :)

P.S. Oh yeah, and thanks for the fifty points (hopefully)

6 0
3 years ago
What systems of the body are involved in preparing and eating a sandwich?<br><br> Please help
PIT_PIT [208]
Ummm
You use your hands and eyes to prepare the sandwich.

And you use your mouth to eat the sandwich.

I hope this is the answer you were looking for.
7 0
3 years ago
Read 2 more answers
If a rock has a volume of 2cm3 and a mass of 12g what is its density
cestrela7 [59]

Answer:

If a rock has a volume of 2 cm³ and a mass of 12 gr, its density will be 6 gr/cm³.

Explanation:

Density is a parameter used in chemistry and physics, which relates the mass and volume of a solid or compound, establishing the amount of volume that occupies a given mass.

If we observe the density formula, we can see that the greater the mass, the greater the density, while the volume is inversely proportional, so the lower the volume, the greater the density. This formula is:

ρ = m/V

Therefore, according to the mass and volume of the rock

ρ = 12 grs / 2 cm³

<em>ρ = 6 grs/cm³ </em>

Being the density of the rock equal to 6 gr/cm³.

6 0
3 years ago
The shape of star dunes is mostly due to ___.
Vadim26 [7]
Variable wind directions
4 0
2 years ago
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