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dedylja [7]
3 years ago
7

if a scientist used radiometric dating on a rock sample which of the following would she likley be trying to find out​

Biology
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

sedimentary rocks

Explanation:

can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years. So in order to date most older fossils, scientists look for layers of igneous rock or volcanic ash above and below the fossil.

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AZT is a reverse transcriptase inhibitor. How does this drug prevent the replication of a retrovirus
Artemon [7]

Answer:

AZT is a thymidine analog

Explanation:

Azidothymidine (AZT) is an antiviral drug used for the treatment of the Human immunodeficiency virus infection (HIV/AIDS) by preventing the transmission of HIV from infected cells. AZT is capable of suppressing the activity of the enzyme reverse transcriptase of the retroviral HIV genome, which enables it to copy RNA into DNA. In infected cells, this double-stranded DNA is integrated into the host genome which is then instructed to produce identical HIV copies. AZT is a thymidine analog that is incorporated into DNA and thus interferes with DNA synthesis, thereby inhibiting cell proliferation.

4 0
3 years ago
Which statement best describes the cell membrane?
vredina [299]

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5 0
2 years ago
A patch of forest has been cleared to build a house. Which is likely to happen to the plant and animal communities of that fores
yKpoI14uk [10]
The animals would lose their homes and might die because they have no shelter. The plants that are in the exact spot where the house is going to be will die. Overall I think the animal species that lives there would decrease rapidly, which would reduce the biodiversity in the area.
3 0
3 years ago
What is the role of dna helicase?
Sliva [168]

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Olin [163]

Answer:

Explanation:

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Organism itself are affected by the interaction of some of this factors this include water and nutrients availability. Distribution of organism in a particular habitat is greatly influenced by availability of water and nutrients it lead to competition for survival among organism. Population density and species diversity also influence community and ecosystem. Population determines how resources is allocated in a community and it affect the activities of the organism in that domain or territory.

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