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Mariulka [41]
3 years ago
15

A scientist who studies living things in the environment is a what?

Biology
1 answer:
N76 [4]3 years ago
7 0
A scientist who studies living things is called a biologist
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Which of the following statements BEST describes an opportunistic infection (OI)?
elixir [45]
The best and most correct answer among the choices provided by the question is the second choice or letter B "<span>OIs are more frequent in the earlier stages of HIV. "</span><span>

</span> Infections<span> that take advantage of weakness in the immune defenses are called “</span>opportunistic.” The phrase “opportunistic infection” is often shortened to “OI<span>.”</span>


I hope my answer has come to your help. God bless and have a nice day ahead!
5 0
3 years ago
Consider the following three populations of birds. Assume HW equilibrium. With these birds red coloring is recessive, while brow
bixtya [17]

Answer:

Red allele frequency will be highest in population II

Population III can undergo bottleneck effect

The frequency of the brown allele will  least likely be altered in the population I

Explanation:

Population I -

Total population - 670

Brown birds - 603

Red birds - 67

Population II

Total population - 100

Brown birds - 90

Red birds - 10

Population III

Total population - 30

Brown birds - 27

Red birds - 3

Frequency of red birds in population I

\frac{67}{670} = 0.1

Frequency of red birds in population II

\frac{10}{90} = 0.11

Frequency of red birds in population III

\frac{3}{30} = 0.1

Red allele frequency will be highest in population II and it will be equal to \sqrt{0.11} = 0.33 as compared to 0.31 in case of population I and III

Population III can undergo bottleneck effect because of smaller population size

The frequency of the brown allele will  least likely be altered in the population that has highest  brown individual , i.e population I

4 0
4 years ago
If a pedigree of several generations shows only females affected by a particular trait, what can be ruled out?
rjkz [21]
What are the options??
5 0
4 years ago
Guanto e 590×3 arme e efetue​
zlopas [31]

Answer:

1770

Explanation MATH

3 0
3 years ago
Which enzyme is responsible for laying down the daughter nucleotides during DNA replication?
DaniilM [7]

Answer: C

Explanation: DNA polymerase is the enzyme that matches and lays down nucleotides to build the daughter DNA strand along each parent DNA strand. Now we're left with all these Okazaki fragments that are separate from each other, so they need to be joined together by the enzyme DNA ligase

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