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zhuklara [117]
3 years ago
11

HELP QUICK!!

Biology
1 answer:
drek231 [11]3 years ago
4 0

Answer:

B.) Carbon and Hydrogen

Explanation:

Lactose is a carbohydrate, and carbohydrates are primarily made of carbon and hydrogen chains.

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What is unusual about Earth’s mantle being exposed?
cluponka [151]

Answer:

There is no actual way that the mantle could be...'exposed' or 'seen'. But scientists have managed to find multiple ways to analyze the mantle and it's actual existence by using multiple devices. The mantle is basically a 2,900 kilometers (1,802 miles) thick blocks of rocks and minerals underneath the crust(or the surface of the earth) , and makes up a whopping 84% of Earth's total volume.

6 0
3 years ago
1.Truong made a pitcher of lemonade for a picnic. Which action shows that lemonade is a liquid and not a solid or a gas?A.Thawin
gizmo_the_mogwai [7]

Answer:

either c or d

Explanation:

4 0
3 years ago
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
During what phase of mitosis are you first able to see distinct chromosomes
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Answer: Prophase

Explanation:

7 0
3 years ago
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8 0
3 years ago
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