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Mariulka [41]
3 years ago
15

PLeASE HURRY

Biology
1 answer:
Stolb23 [73]3 years ago
7 0

Answer: As altitude increases, temperature decreases.

Explanation:

This is because the higher you go the colder it gets, except in the thermosphere, which is the warmest layer of Earths atmosphere.

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A technique that uses measurement of radioactive isotopes to evaluate the activity of the brain is
Furkat [3]
<span>The answer is nuclear imaging. A subject is asked to take in a radionuclide (radioactive isotopes) and as the radioactive material passes though the body, it continually emits radiation that is detectable by an instrument such as a gamma camera. Examples of nuclear imaging techniques are SPECT and PET.</span>




7 0
3 years ago
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Non-Mendelian inheritance patterns can be sorted into three categories: incomplete dominance, codominance, and sex-linked traits
mart [117]

Answer: B (Color blindness)

Explanation:

Typical red-green color blindness in human patients is caused by mutations on genes located in the X chromosome. These mutations act in a recessive manner. Since females have two X chromosomes, the presence of a mutation in a single one of them does not normally result in color blindness. Males, in contrast, have a single X chromosome and therefore the presence of a mutation is likely to cause the disease.

About the other options: Down‘s syndrome is a numerical chromosomal anomaly, not related to sex. Human blood type is a codominant trait. Finally, tail length in dogs is a polygenic trait not amenable to classic Mendelian analysis.

7 0
3 years ago
What happens during metaphase I?
saveliy_v [14]

Answer:

the centrioles are at opposite poles of the cell

the pairs of homologous chromosomes become arranged on a plane equidistant from the poles called the metaphase plate

spindle fibers from one pole of the cell attach to one chromosome of each pair and spindle fibers from the opposite poles attach to the homologous chromosomes

7 0
3 years ago
A close friend has joined a clinical trial. When you ask her about the types of treatment she might be given, she tells you that
Radda [10]

Answer:

A. double-blind

Explanation:

Based on the scenario being described within the question it can be said that the type of trial that she has joined is known as a double-blind study. This is a type of study in which individuals are chosen randomly for each clinical intervention and the results are not given to the researchers until after the trial. This also includes any and all information that may influence the researchers behavior or thoughts on the study.

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3 years ago
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How did the Miller-Urey experiment impact the way scientists think about the origins of life?
Mazyrski [523]

The Miller-Urey experiment showed that simple molecules could have arisen abiotically. This chemical experiment included conditions similar to those present on the early Earth, and tested the origin of life under those conditions.

Water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) were the chemicals used to produce the results of the experiment, the factors needed for simple life to arise. Given similar conditions on other planets, it's possible that life could arise there as well.

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3 years ago
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