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QveST [7]
3 years ago
7

How long did the Triassic Period last?

Biology
2 answers:
blsea [12.9K]3 years ago
5 0
It began 252 million years ago
KengaRu [80]3 years ago
3 0

Answer:

Explanation:

201 million years

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MatroZZZ [7]

Answer:

All of the gas giants have ring systems... I did a quick check on some websites to make sure and all confirm that each one of the gas giants do indeed have ring systems. I hope that helps. :)

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What is the difference between epidemic and endemic.
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AN EPIDEMIC is a disease that affects a large number of people within a community, population, or region. A PANDEMIC is an epidemic that's spread over multiple countries or continents. ENDEMIC is something that belongs to a particular people or country.
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Mention 10 forest trees and their botanical names with their uses​
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Explanation:

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5 0
3 years ago
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The inhabitants of the planet Mendel have three alleles for hair color: red (R), white (W) and blue (b). The R and W alleles exh
Alex_Xolod [135]

Answer:

4 RW pink hair color

Explanation:

Let the allele for red hair color = R

Let the allele for white hair color = W

Let the allele for blue hair color = b

Since R and W exhibit co dominance it means none of both traits have the tendency or capability to masked the other .

As such individual with RW genotype = PInk hair color

Allele b is recessive and only individuals with the genotype bb exhibit the blue allele  

Now; if a cross occurs between a red-haired Mendelian and a white-haired Mendelian

i.e

RR   × WW

we have

           R           R

W         RW       RW

W        RW         RW

So we have the following offspring :

4 RW = 4 pink

So theoretically , the possible phenotypes results to 4 RW pink hair color

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3 years ago
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A dichotomous key is very easy to use because it provides only two choices.
If you need a further explanation let me know!
Hope this helps!

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3 years ago
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