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juin [17]
3 years ago
7

T or F? A light year is a measure TIME on an astronomical scale.

Biology
1 answer:
pogonyaev3 years ago
3 0

Answer:

False.

Explanation:

It's how they measure distance!

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3. What happens to the genes when two chromosomes “embrace”? What is the name of this process?
sdas [7]

Answer:

the processes name is meisois and Genes get exchanged between the parents

Explanation:

5 0
3 years ago
What effect would hypotension have on the capillary hydrostatic pressure gradient and net filtration pressure?
Alla [95]

Hypotension will  cause the interstitial fluid hydrostatic pressure to increase and capillary hydrostatic pressure to decrease. The net filtration pressure will be reduced favoring the absorption .

Explanation:

Hypotension refers to reduced blood pressure. Decrease in blood pressure results in reduced filtration pressure on capillary walls. This reduces the filtration of water and solutes into the tissue fluid but will favor the movement of water from tissue to blood. So we can say that net filtration pressure will be reduced.

7 0
3 years ago
When a scientist uses radiometric dating to determine the age of a rock specimen, would he use a radioactive element with a shor
xenn [34]

Answer:

He will use a radioactive element with a long half life of greater than 1 billion years

Explanation:

Rocks are an aggregation of solid mass which is usually rich in minerals. The age of rocks is established using radiometric dating method.

According to Oxford Dictionary, radiometric dating is "a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample."

The age of rocks can only be ascertained using isotopes that have very long half lives because many of these rocks are very old (aged billions of years) hence their age can only be determined using elements that has a half life greater than 1 billion years.

7 0
2 years ago
How do geological changes affect evolution?
IRINA_888 [86]
Tectonic plate movements, volcanic eruptions, earthquakes, and climate change have shifted wildlife habitats, wiped out large numbers of species, and created opportunities for the evolution of new species. Hope this helped!
5 0
3 years ago
DNA extraction is a useful technique for scientists because it can be used _____. A. to see the nuclei of cells B. to absorb vir
ra1l [238]

DNA comprises the genetic makeup of every organism. It carries genetic information that is used by the organs in the body to determine what functions to carry out.


DNA cannot be used to see the nuclei of cells or absorb viruses. A person's personality cannot be determined from DNA.


The answer is D. to determine if people are related, as DNA between two people can be compared for similarities of code between the two.

8 0
3 years ago
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