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r-ruslan [8.4K]
3 years ago
8

__________ reduces the oxygen content and increases the carbon monoxide of the mother's blood. This quickly reduces the oxygen a

vailable for the fetus. Further, the respiration rate slows and speeds up its heart. Nicotine and toxins appear in the blood.
Biology
2 answers:
kenny6666 [7]3 years ago
8 0

Answer:

smoking cigarettes .

Explanation:

Ivenika [448]3 years ago
4 0

Answer:

Smoking nicotine based product such as cigarette

Explanation:

When a pregnant mother smoke, she intakes various harmful chemicals such as lead, arsenic, nicotine, carbon monoxide etc. These harmful toxic substances directly mix with the blood and are carried to the fetus in the womb of the mother. The oxygen content in the blood reduces due to which the heart beat rate of the baby increases and there are high chances of baby developing some kind of respiratory disorder.

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In the classic Meselson and Stahl experiment, Coli are first grown in 15N-enriched media (0th generation) and subsequently switc
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Options are not provided inthe question. Th ecomplete question is as following:

In the classic Meselson and Stahl experiment, Coli are first grown in 15N-enriched media (0th generation) and subsequently switched to 14N media. A DNA sample isolated during the first generation of E. Coli grown in 14N media is subjected to a centrifugation step in a dense CsCl gradient. Assuming that replication occurs in a semiconservative fashion, the DNA sample will _______.

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2) run as one band, at the same position as a uniformly 15N-labeled DNA.

3) run as one band, at the same position as a uniformly 14N-labeled DNA. run as one band, at a position expected for a DNA containing a 14N:15N ratio equal to 7.

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1)

Explanation:

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