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slava [35]
3 years ago
7

The principal function of mechanical digestion is the

Biology
1 answer:
Alekssandra [29.7K]3 years ago
4 0

Answer:

Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.

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Which type of microscope would you use to study (a) the changes in shape of a living white blood cell and (b) the details of sur
barxatty [35]

1. Answer;

Light microscope (LM)

Explanation;

-A light microscope (LM) is an instrument that uses visible light and magnifying lenses to examine small objects not visible to the naked eye, or in finer detail than the naked eye allows.

-It allows attachment of the focus wheels and the stage to the microscope. A light source used in place of a mirror. Most microscopes do allow manual light adjustment via a wheel located near the base.

2. Answer;

Scanning electron microscope (SEM)

Explanation;

-A scanning electron microscope (SEM) scans a focused electron beam over a surface to create an image. The electrons in the beam interact with the sample, producing various signals that can be used to obtain information about the surface topography and composition.

-There are two main types of electron microscope; the transmission EM (TEM) and the scanning EM (SEM). The transmission electron microscope is used to view thin specimens (tissue sections, molecules, etc) through which electrons can pass generating a projection image.

8 0
4 years ago
Your body has many organs,such as a heart and_________
BARSIC [14]
Your body has many organs,such as a heart and the lungs. An organ is a structure made of two or more tissues that work together for a common purpose. Hope this answers the question. Have a nice day. Feel free to ask more questions.
8 0
3 years ago
5.Diffusion is the movement from ________  concentration to _________ concentration<br>       
arlik [135]
The movement of molecules from a high concentration to a low concentration is called:
diffusion
5 0
3 years ago
Does cell respiration occur in the plastids ?
RSB [31]

Answer:

Yes it does,

Explanation:

Cellular respiration occurs in both plant and animals. It is the process by which cells convert ADP (adenosine diphoosphate) into ATP (adenosine triphosphate). Plant and animal cells cannot use ADP as a form of energy.

7 0
4 years ago
which of the following is a living material that might be found in soil a air b algae c mineral or d silt
marusya05 [52]
It is algae because it is bacteria and bacteria live and breathe.
4 0
3 years ago
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