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stellarik [79]
3 years ago
9

Which microscope is often used to view metal surfaces? scanning electron microscope scanning tunneling microscope transmission e

lectron microscope compound light microscope
Biology
2 answers:
Kitty [74]3 years ago
5 0

Answer:

The answer is B

Explanation:

bija089 [108]3 years ago
4 0

The correct answer is option (a) Scanning tunneling microscope.

Microscopes are used to see the objects at molecular level. Scanning tunneling microscope( STM) is a type of optical microscope that uses optics(light) and lenses to see the enlarged size of the object. This microscope use a small metal tip under a high voltage. when this tip of microscope is brought close to the metal, the metallic tip of microscope draws electrons from the atom (metal) to be observed. This generates an electric current. There is a computer system attached to the microscope that detects the change in the electric current. Computer plots the change in position of atoms in metal.







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Which statement about plasma membranes is correct?
diamong [38]

The statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes (option C).

<h3>What is the plasma membrane?</h3>

Plasma membrane is the semipermeable membrane that surrounds the cytoplasm of a cell. The semi-permeability of the plasma membrane means it allows some molecules through but blocks other substances.

The plasma membrane is the cellular structure that protects and encompasses the cell's content.

All living organisms possess the plasma membrane, which is also called cell membrane.

Therefore, the statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes.

Learn more about plasma membrane at: brainly.com/question/14015347

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8 0
1 year ago
Name two organelle that have highly folded membranes. What is the advantage of the folds?
9966 [12]

Answer:

mitochondria, golgi, ER

Explanation:

These folds have a great advantage for mitochondria as they increase the surface area where chemical reactions occur.

5 0
3 years ago
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Contraction of muscles is an example of how the motor protein _______BLANK interacts with the cytoskeletal elements called _____
Alik [6]
Blank #1 is myosin
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3 0
3 years ago
Answer in a paragraph
san4es73 [151]

Answer: <em>Interphase is the phase in the cell cycle during which cells that will undergo mitosis prepare for division. In interphase, DNA of the cell copies. After that cell undergoes mitosis, which is the phase of the cell cycle during which cell divides on two identical. Mitosis consists of four phases:</em>

<em> </em>

<em>1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up </em>

<em>2. Metaphase: Chromosomes line up at the centre of the cell. </em>

<em>3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells. </em>

<em>4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.</em>

8 0
2 years ago
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Darwin also observed fossil shells of marine organisms high up in the Andes mountains, and saw an earthquake move land that was
liraira [26]

Answer:

Geological events can cause drastic changes over long periods of times

Explanation:

He used these insights and stated that Geological events can cause drastic changes over long periods of time. Such changes can cause entire species to become extinct or cause drastic evolutionary physical changes to other species. This is because the environment changes and the animals living in these environments need to adapt in order to be able to survive. Some changes such as continental drift can even move species to different parts of the world where the climate is drastically different.

5 0
3 years ago
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