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malfutka [58]
3 years ago
14

How does a placenta form?

Biology
1 answer:
LekaFEV [45]3 years ago
7 0

Answer: Placenta forms by fertilized blastocyst embeds in the uterine wall, and development of the fetus and placenta begin. ... These remodeled vessels become a source of maternal blood for the placenta. The placenta develops to bring oxygen and nutrients to the fetus and to move harmful waste and nutrients away.

Explanation: I looked it up on google.

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3 years ago
Each year, earthworms move deep into soil during fall and winter and return toward spring and summer. what is the likely stimuli
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Each year, earthworms move deep into soil during fall and winter and return toward spring and summer. The likely stimulis for this behavioral response are relative humidity & temperature. Since the nematode breathes via the skin, the mucus coating may become dry & the organism would die if exposed to extreme cold & dryness.

Explanation:

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5. ¿Por qué los cálculos de concentración de disoluciones son muy importantes en la industria?
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Porque puede decirnos si su información incorrecta o información correcta

5 0
2 years ago
whether or not you think humans have influenced climate change. Write 100 to 200 words and cite at least three pieces of evidenc
Nitella [24]

In my opinion, humans have influenced climate change because it has been shown that deforestation, industrial activities and urbanization increase the level of greenhouse gases.

<h3>What is global warming?</h3>

The expression global warming makes reference to the sudden increase in temperatures around the world after the industrial revolution.

In this regard, it has been shown that greenhouse gases such as CO2 can increase global warming and human activities may be associated with this process.

In conclusion, in my opinion, humans have influenced climate change because it has been shown that deforestation, industrial activities and urbanization increase the level of greenhouse gases.

Learn more about global warming here:

brainly.com/question/3553382

#SPJ1

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2 years ago
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