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3 years ago

Said all cells come from pre existing cells

Biology

1 answer:

kifflom [539]3 years ago

7 0

In 1885 Virchow said that all cells exist from pre-existing cells

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What is the end result of aquatic succession?

dalvyx [7]

The body of water disappears and the area becomes land.

3 0

4 years ago

Every living organism has what classification groups as its name?

Ivan

The answer is Genus and Species

8 0

3 years ago

In trout, Gene A affects body color and yellow color (allele a) is recessive to red. In a particular river system you find that

hjlf

Answer:

The frequency of the dominant A allele is 0,4 or 40%.

Explanation:

In this population, we have:

- "A" red body color Dominant

- "a" yellow doy color Recessive

So, individuals AA and Aa will be red and trouts aa will be yellow. In this case, 64% of the fish are red, so they are AA or Aa.

If the population is in Hardy-Weinberg equilibrium the following will be true:

$p^{2}+2pq+q^{2}=1$

Where:

$p^{2}=$ frequency of AA

$2pq=$ frequency of Aa

$q^{2}=$ frequency of aa

It is known that 64% of population is red, in other words:

$p^{2}+2pq=0,64$

Or AA+Aa=0,64

So, it is possible to find the value of $q^{2}$ (aa):

$p^{2}+2pq+q^{2}=1$

$(0,64)+q^{2}=1$

$q^{2}=1-0,64$ $q^{2}=0,36$

Now, there are two alleles in this population, therefore their frequencies will be:

$p+q=1$

So, from $q^{2}$ it is possible to find q and p:

$q=\sqrt{q^{2} }$

$q=\sqrt{0,36}$

$q=0,6$

And:

$p+q=1\\p=1-q\\p=1-0,6\\p=0,4$

7 0

3 years ago

What is a place where two bones come together

nata0808 [166]

Answer:

The joint

Explanation:

5 0

4 years ago

What includes the entire planet and all of its living and no living parts

spin [16.1K]

Answer:

The biosphere is a global ecosystem composed of living organisms (biotic) abiotic (nonliving) factors from which they derive energy and nutrients.

Explanation:

im glad to help ☺ anyway its The Biosphere that's the answer

4 0

3 years ago