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ipn [44]
3 years ago
7

The events of childbirth are associated with the process of positive feedback. describe these events.

Biology
1 answer:
sveticcg [70]3 years ago
3 0
One example of a positive feedback loop in childbirth is contractions. When the contractions start, they produce oxytocin, which stimulates stronger contractions, which produce more oxytocin.
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Explain the idea of genetic drift. How does natural selection effect genetic drift.
Anettt [7]

Genetic drift is defined as a shift in the allelic frequency of a population. This can be caused by natural selection which is the differential survival and reproduction of individuals across a population due to differences in phenotype. Natural selection favors particular traits in a population hence these individuals are able to reproduce while the individuals with disadvantageous traits will pass their genes to succeeding generations. This way the allelic frequency of succeeding generation will be diferent from that of the parent population.

3 0
2 years ago
In the following pie chart, which of the following represents the amount of Earth's surface water that is not located in the oce
Temka [501]

Answer:

C) A, B, and C

Explanation:

The amount of Earth's surface water that is not located in the oceans is the addition of A, B, and C in the pie chart.

About 71% of the Earth's surface is covered by water. The ocean has been reported to hold about 97% of all the water on earth while water present in air, rivers, lakes, glaciers and biological systems constitute the remaining percentage.

<em>From the chart, D can be said to represent the amount of earth's surface water held by oceans while the rest (A, B, and C) can be said to be the amount of Earth's surface water that is not located in the oceans.</em>

The correct option is C.

7 0
2 years ago
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Answer: Holds Genetic Information

Explanation:

8 0
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Which of the following processes takes place during prophase?
makkiz [27]

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discuss the indications for the placement of provisional coverage for a crown or a fixed bridge preparation?
Savatey [412]

Answer:

Explanation:

Based on the information provided within the question it can be said that there are various reasons for the placement of this, most of the reasons include,

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