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mixas84 [53]
3 years ago
10

. What are, and what are the distinguishing characters, of the two major groups of Protostomes? 2. Look at the phylogeny of the

Lophotrochozoans. Identify the taxa possessing a lophophore. What does that imply about the evolution (loss or gain) of this trait?
Biology
1 answer:
Harman [31]3 years ago
6 0

Answer:

a)Lophotrochozoam

  • Many free living things larvae
  • Several groups has lophophore
  • Nearly all animals are sessile adults

b)Ecdyozoams

  • Phyla where the organisms molt their outer layer for growth.

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Answer:

adenine (A), cytosine (C), guanine (G), and thymine (T)

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3 years ago
There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively. Allele 1 has a selection coe
Lorico [155]

Answer:

0.8

Explanation:

There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively

Let's use GG to represent allele 1

Let's use gg to represent allele 2

So we can equally say that;

GG = p = 0.7

gg = q  = 0.3   ( from Hardy-Weinberg Equilibrium)

So, given that the selection coefficient = 0.2

We known that the cross between GG and gg will definitely results to (GG,Gg and gg)

Then the fitness of these genes can be represented as:

1 - s, 1 and 1 - t respectively.

Thus. the allele 1's genotype fitness can be determined as

= 1 - s    ( where s is the selection coefficient)

= 1 - 0.2

= 0.8

6 0
3 years ago
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aliina [53]
<span>The layer of Earth's atmosphere where atoms and molecules escape into space is referred to as the ozone layer</span>
3 0
3 years ago
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max2010maxim [7]

Answer:

Radioactive Dating

Explanation:

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Hope this helped!

7 0
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I think it's D) because I found this fact.

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