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Vadim26 [7]
3 years ago
13

____________ is in exocrine gland secretions (breast milk, saliva, tears) and defends against bacteria and viruses. ____________

is found in plasma and activates complement and reacts with blood cells during transfusions. ____________ is found on the surface of most B lymphocytes and functions in B cell activation. ____________ is found in exocrine gland secretions and promotes allergic reactions.
Biology
1 answer:
kozerog [31]3 years ago
4 0

Answer:

IgA, IgM, IgD, IgE.

Explanation:

Antibodies are known as proteins that are produced and secreted by B-cells. They help to bind foreign substances that invade the body, for example, pathogens. The "antibody" term refers to its function, which is to bind with an antigen. This protein molecule is also known as immunoglobulin.

Body fluids attack and destroy specific antigen-bearing particles or antigens through antibody-mediated immunity. There are 5 types of antibodies are present:

1) IgA

2) IgM

3) IgD

4) IgE

5) IgG.

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lana [24]

Answer:

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Explanation:

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In 3–5 sentences, explain how the shape of planetary orbits affects their orbital velocity. Include the proper law of planetary
skad [1K]

Answer:

The planet moves faster when closer to the Sun and slower when it is far from it

Explanation:

The law of planetary motion that answers to this question is the 2nd Kepler's law, which states that:

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In order to understand what are the consequence of this law to the orbital velocity of each planet, we have to keep in mind that planets have an elliptical orbit, with the Sun occupying one of the two focii (Kepler's 1st law).

As a result, the planet at some point of the orbit is farther from the Sun, while at some point is closer to it.

Given to Kepler's second law, this means that when the planet is farther, the orbital velocity must be lower (because the line connecting the planet to the Sun is longer, so it can cover the  same area moving less), while when the planet is closer to the Sun, the orbital velocity must be higher (because the line connecting the planet to the Sun is shorter, so it will cover less area if moving at the same speed.

5 0
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A number should be rounded up if
Maurinko [17]

Answer:

C) the number after it is between 5 and 9

7 0
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Lady_Fox [76]

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