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Slav-nsk [51]
4 years ago
13

Immunity that results from the natural exposure to an antigen (which means you are actually fighting off the antigen) in the env

ironment is called ________ immunity. select one:
a. passive
b. active
c. innate
d. aut
Biology
1 answer:
liraira [26]4 years ago
7 0
This could be either innate or adaptive immunity
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What does an urn-shaped age pyramid represent?
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Some gaming marketers focus on what segment of the population? none of these retirees baby boomers people in their 20s
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3 years ago
What is the aim of the study of systematics?
erastova [34]

Answer:

Its main objectives are to provide scientific names for organisms, to describe organisms, to preserve collections of organisms, to provide and apply classification systems, to help identify organisms, to determine the distributions of organisms, to investigate the evolutionary histories of organisms, and to study the ...

Explanation:

6 0
3 years ago
Tina used 500 N of force to move a desk. The desk weighed 300 N, and she
larisa86 [58]

Answer:

The correct answer is - C. Multiply 500 by 1.5.

Explanation:

Given:

Force to move a desk = 500 N

weight of desk = 300 N

displacement = 1.5 meters

work done by Tine = ?

Formula:

work done (W) = F*d

where F is the force applied on the desk and d is the displacement of the desk.

Solution:

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W = F*d

= 500*1.5

= 750 J

Thus, the correct answer would be option C.

6 0
3 years ago
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