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Andre45 [30]
3 years ago
6

A thin section of bacteria sample is cut with a knife and exposed to an electron beam during:

Biology
1 answer:
nordsb [41]3 years ago
7 0

Answer:

Out of the four given options

option e) Transmission Electron Microscopy

is correct

Explanation:

A thin bacteria sample section is cut with the help of a knife and then exposed to a beam of electron in TEM.

Transmission Electron Microscopy, abbreviated as TEM is a technique of microscopy in which an electron beam is emitted and is made to pass through a specimen which is an ultra thin(less than 100 nm in thickness)resulting in the formation of an image and then this image is then enlarged and focused on a fluorescent screen or on any imaging device.

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Atoms can have different numbers of which of the following electrons, protons neutrons or all of the above
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Atoms may have different numbers of neutrons. Atoms are the smallest fraction of an element that can exist, and still show the properties of the element. They consists of electrons (negatively charged), protons (positively charged), and neutrons (no charge). The number of electrons is equivalent to the number of protons normally however an atom may loose or pick up electrons and  have a positive charge or negative charge. The number of neutrons in the nucleus may vary within a given element to give varieties of atoms we call isotopes. 
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3 years ago
Why does an eclipse happen? The Sun burns out quickly and reignites due to changes in magnetic energy. b A celestial object move
Softa [21]

An eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A

<h3>What is an eclipse?</h3>

The term eclipse refers to a situation in which in which one celestial body casts a shadow on another celestial body. In this case, we could have the earth cast its shadow on the earth or the sun as the case may be.

The kinds of eclipse that could occur are;

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This brings us to conclude that; an eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A

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7 0
2 years ago
At the end of the electron transport chain, where is the light energy that was absorbed and converted by
stepan [7]

Answer:In light-dependent reactions, the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules like ATP and NADPH. Light energy is harnessed in Photosystems I and II, both of which are present in the thylakoid membranes of chloroplasts

Explanation:

8 0
3 years ago
Which best compares the respiratory system to the circulatory system?
andrew11 [14]

Respiratory system is refers to as the organs which are involved in breathing such as nose, throat, larynx, trachea, bronchi, and lungs. It is also known as respiratory tract.

The  circulatory system  is refer to as which contains the heart and the blood vessels and blood moves throughout the body in vessels. This circulatory system helps tissues to get enough oxygen and nutrients, and it helps them get rid of waste products.

<h3></h3><h3>What is breathing?</h3>

When person inhale (breathe in), air enters in the lungs, and oxygen from atmosphere moves to body blood. At the same time, carbon dioxide, a waste gas, moves from blood to the lungs and is exhaled (breathed out).

Breathing process is known as gas exchange which is is essential to life.

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8 0
2 years ago
Which is not something a scientist would study?
zubka84 [21]

Answer:

astrology

Explanation:

astrology is regarded as a pseudoscience. it is based on faith and not any provable concepts.

7 0
3 years ago
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