Why did families have more children per family in the past?

Biology

1 answer:

Sloan [31]3 years ago

8 0

Answer:

Explanation:

In the past, women had five or six children on average, though many babies died soon after birth or in their infancy. For example, in the eighteenth century in France, half of all children died before age ten, and only one-third reached adulthood. Parents had lots of children to ensure that at least some of them survived. Today, child mortality is much lower and in many countries the death of a child is a rare event.

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16. The substances that are reabsorbed did not diffuse (move) from the nephron bowl into the

SpyIntel [72]

Answer:

Active transport.

Explanation:

The kidney uses active transport to move these substances from the nephron to the renal vein because these substances did not moves from the nephron bowl to the renal vein through simple diffusion so for this purpose active transport is used in which energy is spent in order to move the substances from one region to another so we can say that kidney must use active transport to move reabsorbed substances from the nephron to the renal vein.

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2 years ago

Which compound is most likely a powerful and dangerous acid

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The best and most correct answer provided by the question is HBr, the most powerful and dangerous acid. I hope my answer has come to your help. hope this helps and have a nice day!

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3 years ago

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balandron [24]

Hello there!!

The answer, I think, would be A.

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I hope this answers your question!

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2 years ago

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svet-max [94.6K]

Answer:

Complex brain.

Explanation:

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The major environmental conditions has changed but the complex human brain has helped him to sustain and understanding the nature. Humans are successful to sustain on this earth due to their complex brain.

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3 years ago

What is the purpose of the indentation in the of red blood cells

timofeeve [1]

Answer:

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2 years ago

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