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pishuonlain [190]
3 years ago
8

Electron microscopes use

Biology
1 answer:
Pavel [41]3 years ago
6 0

Electron microscopes use _beam of electrons___ in order to allow for higher magnification and more detail when viewing specimens.

Explanation:

A beam of electrons has a shorter wavelength than normal light used in light microscopes, by approximately a factor of X 100000. Therefore, electrons microscope have the inherent attribute of having a very high resolution. They have been used to discover very small organelles in cells such as the ribosomes and mitochondria that cannot be clearly viewed even with the highest resolution in light microscopes.

Learn More:

For more on electron microscopes check out;

brainly.com/question/2845212

brainly.com/question/2121468

#LearnWithBrainly

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The current population of a threatened animal species is 1.6 million, but it is declining with a half-life of 25 years. How many
kotykmax [81]

The current population of a threatened animal species is 1.6 million, but it is declining with a half-life of 25 years. How many animals will be left in 35 years<u> The decay law i</u>

<u>p(t) = 1,700,000 (1/2)t/25</u>

<u>where t is in years and p(t) is the population at time t.  Plug in 40 and 55 for t.</u>

<h3>What is threatened animal?</h3>

Any species (including those of animals, plants, and fungi) that is likely to become endangered in the near future is considered to be a threatened species. The population dynamics measure of critical depensation, a calculation of biomass related to population growth rate, is occasionally used to identify threatened species. This quantitative indicator is one way to gauge how endangered an area is. When discussing IUCN categories, the terms threatened and vulnerable may be used interchangeably; however, threatened generally refers to the three categories (critically endangered, endangered, and vulnerable), whereas vulnerable generally refers to the category that is least at risk among the three. However, since all threatened species are vulnerable species, they can usually be used interchangeably.

To learn more about threatened animal from the given link:

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8 0
1 year ago
Which phrases describe what the rock cycle shows? Check all that apply.
Sonja [21]

Answer:

How rocks change from one type to another and which processes are involved in rock changes.

Explanation:

We know that there are three types of major rocks. Those are: igneous, sedimentary, and metamorphic. The rock cycle describes how the three major rock types convert from one to another.

Changing in rocks happens as a result of natural processes that are taking place all the time. Most of the changes happen very slowly. Rocks that are in the deep within the Earth are right now becoming other types of rocks. Rocks at the surface are lying in place before they are next exposed to a process that will change them to another rock. Even at the surface, we may not notice the changes in the rocks.

Along with this, a rock cycle describes those process which involves in this rocks transformation process. It represents various environmental factors that are related to the change of the rock from one to another.

6 0
3 years ago
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Why do you think there are fewer heart transplants performed each year than kidney transplants?
alexandr1967 [171]

<span>This is because, people, generally, have two kidneys and are also able to function properly with one functional kidney. Therefore it is easier to perform kidney surgery without putting the patient’s life at risk as compared to heart surgery. Everyone has one heart, a critical organ whose surgery has to be well planned and done only if the risk of not doing the surgery outweighs that of doing the surgery. </span>

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3 years ago
Which statement correctly describes the nature of a scientific fact?
kumpel [21]
The answer is going to be B
5 0
3 years ago
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What is the function of the structure labeled Y?
Rashid [163]

Hey there!

I'm assuming it's pointing to the wall in between the two sections of the heart.

We can go over the function of the blue section and red section of the heart. Though I must admit I am not well versed with hearts of birds, I will assume this is similar to a human one. The blue section <u>receives blood from the body which doesn't have any oxygen left in it,</u> and the red section <u>receives blood from the lungs, newly oxygenated.</u> This sector in between separates these two sections, and separates oxygen-poor blood and oxygen-rich blood.

Thus, your answer is option D.

Hope this helps, feel free to let me know if you have any additional questions about this specific problem!

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3 years ago
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