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Mekhanik [1.2K]
2 years ago
13

What part of the microscope is used to move an objective lens into place?

Biology
1 answer:
topjm [15]2 years ago
4 0

Answer:

The ocular micrometer has no units. Revolving Nose Piece - Several objective lenses of varying magnification and numerical aperture are mounted on the revolving nosepiece. The nosepiece must click into place for the objective lens to be in proper alignment.

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The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angle
Nadya [2.5K]

Answer:

2(8x^2-13x+10)

Explanation:

There are 5 angle s in a pentagon and we are assuming are pentagon is a regular one so the angles are all congruent.

Let's let A represent the measurement of one of the those angles in our pentagon.

The sum of our angles in our pentagon would then be A+A+A+A+A or 5A.

But we are also given that this equals 40x^2-65x+50.

So that means 5A=40x^2-65x+50.

If we divide both sides by 5 we can find what one of our angles is in terms of x.  So let's do that A=8x^2-13x+10.

So we want to know the sum of two our angles, we want to know what is A+A or 2A.  2A=2(8x^2-13x+10).  To obtain that I just multiplied both sides of A=8x^2-13x+10 by 2.

6 0
3 years ago
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Explain the differences between a monosaccharide, disaccharide, and polysaccharide.
strojnjashka [21]

Answer:

How are monosaccharides disaccharides and polysaccharides different?

Sugars are carbohydrates. ... The main difference between Monosaccharides Disaccharides and Polysaccharides is that monosaccharides are monomers of sugars and disaccharides are composed of two monomers whereas polysaccharides are composed of a large number of monomers.

7 0
3 years ago
Help me!
andrey2020 [161]

As the bear enters hibernation, its metabolic processes such as body temperature, heart rate, and respiratory rate are reduced. But bears do not lower the body temperature as much as once thought. Their hibernation temperature is around 88 degrees and waking temperature is 100 degrees F. This relatively high sleeping temperature allows bears to become fully alert if aroused, perhaps to enable the bear to protect itself from predators and other dangers without unnecessarily taxing their energy reserves. Over the course of a hibernating season it is thought that bears use approximately 4 thousand calories a day, which results in a weight loss of about 20 percent of it body weight by spring.

5 0
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How does a species survive a climate change over thousands of years?
julsineya [31]

Answer:

It adapts to the changing climate

Explanation:

Species have to acclimatise to changing climate to enable them survive

A means of adaptation is key for survival of species during climate change

If species do not have acclimatisation strategy, they would not be able to survive the changing climate

6 0
3 years ago
This is an organism that relies on complex organic substances for nutrition.
Lilit [14]
A heterotroph is an organism that relies on complex organic substances for nutrition. <span>A </span>heterotroph<span> is an animal that can't make its own food supply, so they have to eat other things, like plants or other animals, to survive. Hope this answers the question.</span>
5 0
3 years ago
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