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defon
3 years ago
5

What makes up 78% of todays atmosphere

Biology
1 answer:
noname [10]3 years ago
3 0
Nitrogen makes up 78% of the warts atmosphere
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The gas(es) that has/have the greatest relative contribution to increasing the greenhouse effect is/are
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Which of the following is a need of most plants ?
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D. To capture sunlight to perform photosynthesis

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Sunlight is one of the requirements of plant photosynthesis

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a german measles rubella epidemic during the years 1963 to 1965 resulted in approximately 30,000 babies being born with birth de
Juli2301 [7.4K]

Answer:

In babies born with congenital defects during the German measles rubella epidemic the specific cause of these birth defects was most likely the development of rubella virus infections in embryos.

Explanation:

Options for this question are:

<em>1. </em><em>The development of rubella virus infections in  embryos. </em>

<em>2. The failure of zygotes infected with rubella to develop </em>

<em>3. Mutations in the nerve cells of pregnant  females at the time of the rubella epidemic .</em>

<em>4. An increase in the amount of time needed for  healthy embryonic development.</em>

Rubella is a viral infection caused by a virus of the genus Rubivirus, considered highly teratogenic during the phases of pregnancy where the embryo and the fetus are developing, that is, before 20 weeks of gestation.

<u>The virus is transferred to the embryo or fetus by the mother's blood, acquiring the disease</u>, which can cause abortions or visible malformations at birth, which is called <u>Congenital Rubella Syndrome</u> (CRB).

CRB is responsible for producing cardiovascular, renal, neurological malformations, loss of vision or hearing, problems that German children born during the epidemic probably had.

Learn more:

Congenytal rubella brainly.com/question/2107536

3 0
3 years ago
Which of the following is the correct Lewis structure diagram for Sodium (Na)? The letters Na with one dot The letters Na with t
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One

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Sodium (Na) has one valence electron so it gets one dot.

6 0
2 years ago
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