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spin [16.1K]
3 years ago
5

Scientists use restriction ________ to

Biology
1 answer:
Alexus [3.1K]3 years ago
6 0

Answer: enzymes (B)

Explanation: just took the quiz on usa test prep!

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How does a coronal mass ejection (CME) affect the solar wind?
brilliants [131]

Answer:

Option A

Explanation:

Corona is defined by the strong magnetic fields. When these strong magnetic fields confine solar atmosphere and produces violent bubble of gases then it is said to cause coronal mass ejection (CME).  

When a CME passes through the solar wind, it causes production of high velocity solar energetic particles that follow magnetic field lines and passes through the space between the Sun and the Earth. The charged particle added by CME intensifies the solar wind.  

Hence, option A is correct

4 0
2 years ago
Which of the following statements about biological membranes is FALSE? Which of the following statements about biological membra
Brrunno [24]

Answer:

Option (1).

Explanation:

Biological membrane mainly composed of lipids and proteins with the small amount of carbohydrate exposed on the outer surface of the membrane. This membrane plays an important role as it separates the cellular environment and facilitate the transport of the selected molecule.

The flippase enzyme is required to transport the molecules from one side of the membrane to the other membrane. Lipids and proteins can undergo lateral motion but at the different rate within the membrane.

Thus, the correct answer is option (1).

5 0
3 years ago
A cell with a 3.5% solute concentration is __ to a solution with 1.5% solute concentration.
klemol [59]
Hypertonic would be the correct answer, there is more solute making the cell let out more water, shrinking the cell, therefore being hypertonic.
4 0
3 years ago
After a big meal, in those individuals who do not have type i diabetes, the pancreas secretes insulin, which circulates through
chubhunter [2.5K]
This is an example of negative feedback. 

After a big meal, glucose levels in the bloodstream increases. The body recognises this change and goes through homeostasis, or the regulation of bodily state or internal environment.

The pancreas secretes insulin, which then binds to insulin receptors. This will result in the uptake of excess glucose from the bloodstream into cells and converted into glycogen to be stored in cells as energy storage molecules. 

Since there is the counter effect of body (i.e. when blood-glucose concentration increases, the body sends a signal to decrease the blood-glucose concentration, this is called a negative feedback (instead of a positive feedback, which occurs if for e.g. the body signals cells to increase blood-glucose concentration even after blood-glucose concentration increased after a heavy meal).

Hope this helps! :)
7 0
3 years ago
What is the name of the period from 2 to 8 weeks following fertilization during which significant growth occurs in the major org
poizon [28]

Answer:

The correct answer is embroynic stage

Explanation:

The prenatal development is divided into three stages germinal stage, embryonic stage and fetal stage. The period of two weeks after fertilization is called the germinal stage. In this stage, the zygote divided and gets implanted in the uterine wall.

The embryonic stage starts for two weeks and lasts up to 8 weeks after fertilization. At this stage, the cell mass is called embryo. In the embryonic stage, the basic brain structure, CNS, PNS are developed. All the basic organs and body parts develop in this stage except sex organs. So the right answer is the embryonic stage.

3 0
3 years ago
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