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Leni [432]
3 years ago
12

A scientist tests a sample in the lab and finds

Biology
1 answer:
ziro4ka [17]3 years ago
4 0

Answer:

It is difficult to obtain a final conclusion with this information, but it is possible that the sample doesn't contain living organisms whose genetic material is composed of DNA. Another possible reason for this result is that the DNA extraction protocol used in the experiment is not suitable for this sample.

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I believe the answer is C) is different lengths of time for different types of cells.
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How do i pass biology without doing the work?
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all you have to do is use this app

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8 In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation
KatRina [158]

Answer: B

Explanation:

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8 0
3 years ago
What is the principal source of dissolved substances in the ocean
Ipatiy [6.2K]

Answer:

infiltration

Explanation:

  • As Na and Cl make up much of the dissolved common salts found in the ocean waters, the element in the earth's crust can be easily be dissolved in the rain and river and get carried away from the runoff of the river.
  • Infiltration is process by which water on the ground enters the soil. The porosity of the soil particles on land water determine the infiltration capacity and thus are a major source of dissolved sediments in water bodies.
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6 0
3 years ago
Read 2 more answers
Lesions of the extrapyramidal system typically interfere with spinal reflexes by A. exaggerating them. B. temporarily blocking t
makkiz [27]

Answer:

The correct answer is - option A. exaggerating them.

Explanation:

The extrapyramidal tracts forms or forms in the brainstem that brings the motor fibers that carry motor signals to the spinal cord. The extrapyramidal that are responsible for the regulation of the autonomic and involuntary control.

lesions in these system cause the exaggerating in the spinal reflexes that regulates the control of muscle tone, posture, and other actions, involuntary.

Thus, the correct answer is - option A.

3 0
3 years ago
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