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aliina [53]
3 years ago
14

4. What is an example of positive feedback?

Biology
1 answer:
Shtirlitz [24]3 years ago
4 0

Answer:

C

Explanation:

It is known as lactation. The suckling action of an infant produces prolactin, which leads to milk production; more suckling leads to more prolactin, which in turn leads to more lactation. This is a positive feedback system as the product (milk) produces more suckling and more hormone. When the child is no longer breast feeding, the prolactin drops off and milk production goes down.

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Sociologically, "gender" and "sex" are interchangeable terms that have virtually the same meaning true or false
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False.

Explanation:

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The official "science" or "study of" classifying, grouping, and naming organisms are called ...
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a man is twice as old as his son.Five years ago the ratio of their ages was 9:4.Find the sum of their ages​
elena-s [515]

Answer:

75years

Explanation:

Let the Father's age be represented by 2x

Let the Son's age be represented by x

Five years ago;

Man's age will be = 2x - 5

Son's age will be = x - 5

If the ratio of their ages five years ago was 9:4, then;

2x - 5/x-5 = 9/4

4(2x - 5) = 9(x - 5)

8x - 20 = 9x - 45

- Collect like terms

-20 + 45 = 9x - 8x

25 = x

Hence, the son's age = 25 years

If x = 25, the father's age (2x) will be 2 × 25 = 50years

The sum of their ages will be = 25years + 50years = 75years

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3 years ago
Dissolving salt into water is an example of ____________________.
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Answer:

B.

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What does a round cross-section of a long bone suggest?
Alex73 [517]
It suggests that the bone will have equal strength in all directions.
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