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AnnZ [28]
3 years ago
12

In sexual reproduction, what helps to maintain genetic variation?

Biology
2 answers:
fomenos3 years ago
8 0

Answer:

The answer is a because it will give you genetic variation

rewona [7]3 years ago
3 0

The answer is A.) reduction division and fertilization

I took the test got it correct

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The normal force acting upon the car is best represented by arrow __. The force of gravity acting upon the washers is best repre
geniusboy [140]

Answer:

1. The normal force acting upon the car is best represented by arrow <u>A</u>.    

Reason:

The direction of normal force is always upward and opposite to gravitational force that why A is correct option.

2. The force of gravity acting upon the washers is best represented by arrow <u>B</u>.

Reason:

The direction of gravitational force is always downward toward the center of gravity and opposite to normal force that why B is correct option.

3. The applied force on the car is best represented by arrow <u>C</u>.

Reason:

The direction of applied force is along the  direction in which it moves. that why C is correct option.




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3 years ago
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Antibiotic prophylaxis is prescribed for a 2-year-old child with a cardiac malformation who is awaiting corrective surgery. the
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The nurse should explain that during surgery, an antibiotic prophylaxis is administered to prevent the incidence of surgical site infection. The use of antibiotic before the procedure is just one of many actions taken to help reduce the rate of wound infections. Furthermore, the initial dose must be given most likely within 30 minutes before incision. Then, the next dose is at one to two half-lives of the antibiotic, which is recommended for the duration of the surgery. Thus, appropriate timing of dose is essential to the effectiveness of the antibiotic.

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tamaranim1 [39]

Answer:

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Define the components of blood and briefly describe their role.
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Plasma is like the main component that makes up most of the blood. It has a light yellow color and it carries many substances including nutrients, waste, hormones and more.

Red blood cells are the reason why blood is red in color. They have a hemoglobin inside them which can help carry oxygen for the tissues and organs. In order to maximize the oxygen carrying capacity, they don't have a nucleus.

White blood cells can be divided into phagocytes and lymphocytes. Their main function is to protect us from diseases. Phahocytes and engulf and digest bacteria, while lymphocytes can produce antibodies.

Blood platelets can cause blood clotting which can stop us from bleeding forever. They're not cells, but just fragments of cells. They also don't have nucleus since they're not complete cells.
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Scientists tested the effect of a fertilizer on the growth of plants. They had 2 sets of plants, Group A which gets fertilizer,
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1. This scenario is controlled due to the fact that they usually <span>test the effect of fertilizer, water and sunlight. Two last points pose as explanation for the second part of question.
2. It </span>can not be considered a theory because often it is supported by <span> hypothesis, so it's not direct thesis.
3. The way to know </span>that the y-axis is measuring the growth of the plant is to look at the graph and see that it <span>shows  plant growing up.</span>
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