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S_A_V [24]
3 years ago
10

Help I have no idea!!!

Biology
1 answer:
Ganezh [65]3 years ago
7 0
Evaporation is the answer
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Which of the following genetic changes would be passed from parent to child?
bearhunter [10]

Answer:

The addition of a chromosome in an egg cell.

Explanation:

Mutation may be defined as sudden, heritable change in the DNA sequences. The mutation may be caused during the DNA replication or may be caused by the environmental factors.

The mutation that occurs in the gametic cells may pass down from parents to their offspring. The addition of an extra chromosome in egg cell will be inherited in the next generation.

Thus, the correct answer is option (C).

4 0
3 years ago
A microbiologist has a bacterial culture with 100,000 cells per mL of nutrient broth, but needs to dilute the culture with steri
bija089 [108]

To accomplish the dilution the microbiologist should dilute 1 mL of the bacterial culture in 100 mL of the total volume. Thus, option C is correct.

<h3>What is dilution?</h3>

Dilution is a process of decreasing the solute concentration by the addition of the solvent in the solution. The volume for the dilution is calculated as:

Given,

C1 = 100,000 cell per mL

C2 = 1000 cell per mL

V1 = 1 mL

C1 V1 = C2 V2

100,000 × (1 ÷ 1000)

= 100 mL

Therefore, 100 mL should be used to dilute 1 mL.

Learn more about dilution here:

brainly.com/question/14820916

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7 0
2 years ago
The fact that the majority of human newborns weigh around 7 pounds is reflective of ________________.directional selection stabi
Virty [35]
Your answer would be :


B) Stabilizing Selection

7 0
3 years ago
Which part of the immune system is produced in the bone marrow and circulates through the blood to destroy germs?
Masja [62]
The answer is white blood cells
3 0
3 years ago
Read 2 more answers
The rapid depolarization phase of the action potentials of myocardial contractile cells is due to which ion(s)? The rapid depola
fgiga [73]

Answer:

Na+ only

Explanation:

Depolarisation of membrane refers to the change in the resting membrane potential of the membrane of a cell which is usually -70mv to a more positive value.

This value changes when the positive ions move inside the cell which increases the positive charge inside the cell.

In the myocardial cell, the sodium ions move inside the cell which changes the potential towards the more positive side as a result of which the signals for contraction arises.

Thus, Na+ only is correct.

5 0
3 years ago
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