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artcher [175]
3 years ago
6

What are dependent and independent variables? Give examples of each.

Biology
1 answer:
Mashcka [7]3 years ago
3 0
Independent variable are things you can change, dependent variables are things that change because of the independent variable.

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 I will give you brainliest if you answer this ASAP 
givi [52]

Answer:

400

Explanation:

Because if you pull one black marble out of four and there are 100 black marbles then there is 300 others, so in total it would be 400 marbles.

thanks if i'm given brainliest!!!

3 0
4 years ago
Dual innervation by both the parasympathetic and sympathetic divisions of the ANS imparts what function to the organ
skad [1K]

Explanation:At each target effector, dual innervation determines activity. For example, the heart receives connections from both the sympathetic and parasympathetic divisions. One causes heart rate to increase, whereas the other causes heart rate to decrease.

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3 years ago
Animals return water to the air through
FromTheMoon [43]

Answer:

Transportation i guess

Explanation:

4 0
3 years ago
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Pleaseeee help pleaseeeeee
lukranit [14]

Answer:

Meiosis

Explanation:

Meiosis is one of the two types of divisions that cells usually undergo. However, meiosis is unique to sexually-reproducing organisms. Meiosis is the cell division which results in daughter cells with a reduced number of chromosomes (by half). Meiosis is used to produce gametes in sexually reproducing organisms.

According to the question, Labrador retriever contains 78 chromosomes in each of its muscle cells, which is a somatic cell. Since Labrador retrievers are sexually reproducing organisms, a male one will produce gametes (sperm cells) via the process of meiosis. At the end of the meiotic process, sperm cells with 39 chromosomes each will be produced.

5 0
4 years ago
As part of a blood drive on campus for the American Red Cross, you and your friends have just donated 500 ml of blood. You are n
Lunna [17]

D) no change in cardiac output, increased heart rate, decreased stroke volume occurs after blood donation

Explanation:

When a person donates blood, there is a slight loss of blood volume or hypovolemia. This triggers the baroreceptors of the blood; although does not trigger the osmoreceptor.

The baroreceptor responses are according to the arterial pressure which rises momentarily and results in increased sympathetic activity with decreased vagal activity.

These changes will lead to vasoconstriction, reduced stroke volume, increased heart rate or tachycardia which helps to maintain the cardiac output.

The soreness at the venepuncture site on the skin is due to bruising which is common after any needleprick. applying cold pack, elevating and resting the arm.

In order to compensate for the fluid volume loss and avoid dehydration, one must take plenty of fluids before and after blood donation.

8 0
3 years ago
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