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blondinia [14]
3 years ago
7

HELP!!  Quick. Please?!    What determines the boundaries of a watershed?

Biology
2 answers:
lys-0071 [83]3 years ago
8 0
The answer is C I believe.
love history [14]3 years ago
7 0
I think it is C 

but if im wrong im sorry 

I hope this helps :3 
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Which type of microscope would be best to use if you wanted to look at a living cell?
Pani-rosa [81]
That would be the Compound Microscope, it provides a high magnification that can visibly see movement in the cell, however, it has a low resolution. Hope it Helped!
6 0
3 years ago
An example of an epigenetic change is
Oksana_A [137]

Answer:

The correct answer is option d.

Explanation:

An illustration of epigenetic change is a microbe, which can stimulate modifications in the host DNA, causing suppression of defenses or weakening of individual cells. Epigenetic changes modify the physical composition of DNA.  

One of the examples of epigenetic change is DNA methylation. DNA methylation refers to the supplementation of methyl group, which inhibits some of the genes from getting expressed. One of the conditions of DNA methylation is cancer.  

In the majority of cancer, the tumor cells go through global hypomethylation. The tumor suppressed genes seem to turn highly methylated in the conditions of cancer.  

5 0
3 years ago
3. Which is true about the relationship between an object's mass and its weight?
anygoal [31]

Answer:

B

Explanation:

Mass is constant. Weight varies due to gravity.

For example, On earth you weigh 75kg but on Jupiter you weigh 275kg (not accurate). Your weight has varied. However your mass is the same on both planets.

3 0
3 years ago
The atmosphere and oceans are in constant motion. This is because
Dmitry_Shevchenko [17]

Answer:

Due to the earth's rotation and the gravitational pull of the moon.

7 0
3 years ago
This has to do with blind spots: What parts of the eye are involved with this inability to see? How do these eye parts function?
Slav-nsk [51]

Answer:

  • Blindspot
  • It has a vital role. It is the only way out of the optic nerve. By this hole optic nerve exits from the eye and goes towards the brain.
  • It can be proved by a simple experiment. A paper sheet is taken. Then a cross and a circle are drawn side by side on that paper. Then we will focus on the cross. Then by closing one eye and by bringing the paper slowly towards our face, the circle will be disappeared at a certain point.        

Explanation:  

The blind spot is a region on the retina where ganglion cells connect with the optic nerve, and the optic nerve and blood vessels leave the eyeball. There are no receptors in this area so nothing can be translated into vision. That's why the blind spot is unable to see things.

6 0
3 years ago
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