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BARSIC [14]
2 years ago
11

What is the importance of the feedback mechanism in the regulation of the menstrual cycle?​

Biology
1 answer:
andrew11 [14]2 years ago
5 0
During ovulation, positive feedback causes a burst of FSH, LH, and estrogen. During the second half of the cycle, progesterone rises as the corpus luteum in the ovary matures and produces this hormone. Negative feedback helps keep levels of the other three hormones fairly constant.
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At night, the concentration of carbon dioxide in the air in a forest is high. What is the main reason for this?
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Answer:

The main reason the concentration of carbon dioxide in the air in a forest is high is due to the increase in plant growth.

Explanation:

Plants release carbon dioxide because of the process of respiration in which plants take in oxygen and give out carbon dioxide. During the day, carbon dioxide enters through the tree's pores, making oxygen escape (and is consistent with the “reverse lungs” concept).

On the other hand, at night, oxygen enters through the pores, and carbon dioxide escapes, rather than oxygen.

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What kind of graphs would be best used to represent this type of data?
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Source Net:

. . . a Line graph.

Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.

. . . a Pie Chart.

Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time.

. . . a Bar Graph.

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. . . an Area Graph.

Area graphs are very similar to line graphs. They can be used to track changes over time for one or more groups. Area graphs are good to use when you are tracking the changes in two or more related groups that make up one whole category (for example public and private groups).

. . . an X-Y Plot.

X-Y plots are used to determine relationships between the two different things. The x-axis is used to measure one event (or variable) and the y-axis is used to measure the other. If both variables increase at the same time, they have a positive relationship. If one variable decreases while the other increases, they have a negative relationship. Sometimes the variables don't follow any pattern and have no relationship.

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Blood type A has antigen A on the surface of its red blood cells and anti B antibodies in its plasma. Due to the presence of antigen A on its red blood cells, the blood type A shows agglutination with anti A antibodies.  

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Consider the following food chain:
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D. that is the correct answer
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