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jeka94
3 years ago
9

Which of the following is a method used to obtain the relative age of a rock or fossil?

Biology
1 answer:
Len [333]3 years ago
8 0

Answer:

B

Explanation:

Radiometric dating uses naturally occurring radioactive elements such as carbon-14 within the rock or fossil to estimate its approximate age. The half-life of the element must also be known. The amount of the radioactive trace element is compared to, in a ratio, with that of the number of the decay product elements. This approximate age can then be relatively compared to those of other rocks or fossils.

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The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and
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Explanation:

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Archaebacteria

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Maksim231197 [3]

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2 years ago
Larger the size of an organism bigger the size of its cells. Do you agree with this statement? Give scientific reasons.
vodomira [7]

Answer:

Disagree.

Explanation:

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8 0
3 years ago
The first commercial application of genetic engineering was the use of bacteria to make insulin, a medicine needed by diabetics.
Murljashka [212]

Answer:

The question is incomplete, it lacks options. The options are:

A) It has made the demand for insulin decrease.

B) It has made the incidence of diabetes decrease.

C) It has made it easier for diabetics to inject themselves with insulin.

D) It has made insulin cheaper and more readily available.

The answer is D

Explanation:

Genetic engineering is a biotechnological procedure that involves the transfer of genes from one organism to another using biotechnology. In this case, bacteria cells are said to be genetically modified because their genetic content is tampered with and the genes that produces the insulin protein in humans is added into their genome. Hence, they transcribe and translate this gene to produce the protein-insulin.

Diabetic patients cannot produce this insulin in their system. Hence, the insulin produced from this genetically modified bacteria cells can be administered to diabetics via injection. This genetically modified way of producing insulin has proven to be a far better option to the previous practice of slaughtering cattles and pigs to obtain this protein because the GM method allows insulin to be produced in large amounts making it available and cheaper to diabetics.

7 0
3 years ago
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