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horsena [70]
3 years ago
11

Which of these is a method of obtaining oil? A. Tar sands extraction B. Coal mining C. Surface mining D. Underground mining

Biology
1 answer:
hodyreva [135]3 years ago
8 0

Tar Sands Extraction!! (APEX)

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A particular triplet of bases in the coding strand of DNA is 5'-CGT-3: Which of
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Since in RNA Cytosine(C) binds with guanine(G) and thymine(T) binds with adenine(T) the anticodon for

the mRNA codon is GCA

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2 years ago
Phosphatases are a family of enzymes that remove phosphate groups from specific proteins; these phosphate groups had been added
guapka [62]

Answer:

Kinases would stop working too.

Explanation:

Cells work constantly to maintain homeostasis or equilibrium within themselves. One of the mechanisms used for this purpose is feedback. As mentioned in the question, kinases put phosphates on proteins, and then, phosphatases take them off. Therefore, for phosphatases to work, kinases must be working at the same pace. By inhibiting the phosphatases the number of phosphate-proteins will be too high. This can be perceived by the kinases and they will automatically stop working since there's an excess of product. That process is called feedback.  

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3 years ago
Which of the following is a way that asexual reproduction is different from sexual reproduction? A. In asexual reproduction, the
vova2212 [387]
I would choose answer choice D.

Sexual reproduction makes genetically diverse offspring, while asexual reproduction makes genetic clones of itself, and doesn't require another parent.
4 0
3 years ago
Which dimension of health involves placing the needs of others above your own?
erica [24]
The answer to this question is  C. Spiritual health
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6 0
3 years ago
Read 2 more answers
Suppose the femur bone of an animal has 1,000 atoms of carbon-14 when the animal dies. How many atoms of carbon 14 will be prese
shtirl [24]

Answer:

After 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

Explanation:

The half-life of a radioactive isotope of an element is the time taken for half the atoms present in a given amount of the element to undergo decay or disintegration. For example, the half-life of carbon-14 isotope is 5730 years. This means that, if there are 100 atoms of carbon-14 present in a given sample of a material, in the next 5730 years, approximately, 50 atoms of carbon-14 will be left in the material.

Since the half-life of radioactive isotopes are constant, these radioactive isotopes are used in the determining the ages of ancient life-forms as well as rocks.

In the given example, after 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

8 0
3 years ago
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