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ki77a [65]
3 years ago
10

What best describes the role of cell-to-cell communication during a response to an invasion of antigens?

Biology
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

Chemicals that are secreted from antigen-presenting cells then activate helper T cells.

Explanation:

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A neutral stimulus causes no response. t/f
stira [4]
The answer is true, i just took the test.
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4 years ago
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Adding all the three primary colors-red, green, and blue-at maximum intensity produces the color _____, while adding any two of
emmasim [6.3K]

Answer:

White

Explanation:

Some times when we look at some objects they appear to be different in color to us than their actual color. It may be due to several wavelength of  light with different intensities is striking on our eye.

Remember, white is not a color it is just produced in response to combination of 3 or more than three colors like light.

The three colors that can be combined at full intensity to form a white color are called as primary colors. The most common set is

               Red+Green+Blue= white

Zero intensity of each component gives darkest color and full intensity of any component give a white color.

Secondary colors can be produced by the addition of two colors such as;

                Red+Green=Yellow

                Red+Blue=Magneta

                Green+Blue=Cyan

5 0
3 years ago
Which body systems work together to move your hand when you touch something hot?
djverab [1.8K]

Answer:

The nervous system takes in information through our senses, processes the information and triggers reactions, such as making your muscles move or causing you to feel pain. For example, if you touch a hot plate, you reflexively pull back your hand and your nerves simultaneously send pain signals to your brain

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3 years ago
Art therapists should be excellent artists.<br><br><br> True<br> false
balandron [24]

Answer:

I think it's "True" sorry if I'm wrong

7 0
2 years ago
Catabolism of food molecules involves ________. group of answer choices glycogenesis dehydration reactions synthesis reactions h
prisoha [69]

Catabolism of food molecules involves Hydrolysis reaction. It is the chemical bonds,its water breaks one or more chemical bonds.The cleavage of bio-molecules where a water molecule is consumed into component parts.

Hydrolysis reaction break the covalent bonds by consuming a water molecules and dividing its atoms between separate molecules these reactions are catabolic . It gives out energy and its exergonic. In this reaction large molecules are broken down into smaller ones.

There are some examples such as reverse of the condensation reactions described above. The process that dissolve a piece of bread into simple nutrients your body can use like glucose.

To learn more Catabolism here

brainly.com/question/28060160

#SPJ4

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2 years ago
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