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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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How does the excretory system work with the muscular system?
Norma-Jean [14]

Answer:

How the Muscular and the excretory system work together. The Muscular system helps the Excretory system by moving waste through the body and protect its organs. The Excretory system helps the Muscular system by getting rid of carbon dioxide from the muscles.

Explanation:

4 0
3 years ago
Cytopathic effects are changes in host cells due to.
anzhelika [568]

Answer: viral invasion.

Explanation:Cytopathic effect or cytopathogenic effect (abbreviated CPE) refers to structural changes in host cells that are caused by viral invasion. The infecting virus causes lysis of the host cell or when the cell dies without lysis due to an inability to replicate. Both of these effects occur due to CPEs.

4 0
2 years ago
In which of the following ways does a fertilized egg differ from an unfertilized egg? A) A fertilized egg has more unpaired chro
jok3333 [9.3K]
Answer - D
Gametes always have half the number of chromosomes compared to the somatic cells, hence an unfertilized egg would have half the chromosomes from the mother, and a fertilized egg will contain diploid number of chromosomes. Half of them from inherited from each of the two parents.
7 0
2 years ago
Read 2 more answers
Which form of government would have the MOST amount of citizen participation?
geniusboy [140]
ANSWER:

A. Democracy

Explanation:

A democracy would have the most amount of citizen participation because in this type of government members of society have equal access to political power through voting and elections

I hope I was helpful :)
8 0
3 years ago
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If you begin cutting a piece of copper in half and continued cutting it in half until you had the smallest piece you would end u
antoniya [11.8K]

Answer:

B: an atom

Explanation:

An atom is the smallest substance that can exist in isolation.

Hence, if a piece of copper is continually divided, eventually the smallest particle you would get in an atom.

3 0
2 years ago
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