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Veseljchak [2.6K]
3 years ago
7

The immune systems __________ line of defense against infectious diseases includes the skin

Biology
1 answer:
Serjik [45]3 years ago
6 0

Answer: First line of defense.

Explanation: The immune system's way of protection initially begins using the skin to protect against any physical and chemical harm. This is called the first line of defense. Amongst other first line defense mechanism includes; tears to protect from harmful substance in dust and air, cillia inside the nose, the internal mucosal linings to protect against harsh chemicals as well as freindly bacteria called our normal microflora.

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Photosynthesis
Simora [160]

Answer:

The answer is c I think sorry if it is wrong

5 0
3 years ago
When colors are absorbed, the light changes into.<br> ..
Anna71 [15]

Answer: a change in energy state occurs. The answer is dark or opaque - not able to be seen through.

Explanation:

The absorption of light makes an object dark or opaque to the wavelengths or colors of the incoming wave: Wood is opaque to visible light. Some materials are opaque to some wavelengths of light, but transparent to others. Glass and water are opaque to ultraviolet light, but transparent to visible light.

3 0
3 years ago
Read 2 more answers
Which of the following is NOT one of the
Dimas [21]

The way that does not successfully classify protists is their size. Thus, the correct option is C.

<h3>What are Protists?</h3>

Protists may be defined as one of the diverse taxonomic groups and particularly a kingdom of eukaryotic organisms that are unicellular and sometimes colonial or less often multicellular and that generally include the protozoans, most algae, and often some fungi.

On the basis of the way that Protists reproduce, they can be subdivided into three types: Sexually reproducing protists, asexually reproducing protists, and conjugation-based.

On the basis of how protists get energy and food, they are again subdivided into three categories.

  • Animal-like protists: Heterotrophs that have the ability to move.
  • Plant-like protists: Autotrophs that have the ability of photosynthesis.
  • Fungi-like protists: Heterotrophs have cells with cell walls.

On the basis of the way that they move, they are subdivided into two types: Motile protists and non-motile protists. They generally move with the help of cilia, flagella, and pseudopodia.

Therefore, the size is not one of the following ways that protists are grouped. Thus, the correct option for this question is C.

To learn more about Protists, refer to the link:

brainly.com/question/2169979

#SPJ1

8 0
1 year ago
In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress on cells lining the walls of
Lynna [10]

Answer:

250 N/m2

Explanation:

Shear stress on cells lining the walls of the blood vessels  is equal to 2020 dyne/cm2

In terms of Newton/square meter, shear stress is equal to

20*\frac{dyne}{cm^2}  (\frac{10^{-5}N}{1 dyne} )*(\frac{1 cm^2}{10^{-4}*m^2} )\\= 2.0 N/m2

Shear modulus is equal to shear stress divided by shear strain

Thus, shear modulus is equal to

= \frac{2.0}{0.008} \\= 250N/m2

7 0
3 years ago
Which characteristics apply to the autonomic nervous system?
fomenos

Answer:What is one of the big differences between traditional media and social media?

a. participatory production

b. social media reaches only a few people at a time

c. the management structure of the companies

d. traditional media offers no way for audiences to communicate with media producers

Explanation:

6 0
2 years ago
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