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guajiro [1.7K]
3 years ago
10

Which cells are required to process and present antigens from foreign material as the initial step in the immune response?

Biology
1 answer:
Alexxandr [17]3 years ago
6 0
<span>The macrophage is the cell responsible for detecting, engulfing and destroying pathogens and apoptotic cells. These cells process and present antigens (foreign materials) to immunocompetent cells and thus they are the key mediators in the development of all immune reactions.</span>
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Match each step of the scientific method with its description
sergij07 [2.7K]
Step 1: State the problem
description: define the problem as clearly as possible.
Example: The front brakes are making a loud noise.

Step 2: Gather information
description: Gather data about the problem and make good observations using all 5 senses.
Example: He checked all his other songs and found they all did the same thing.

Step 3: Form a hypothesis
description: a prediction that can be tested.
Example: Luke decided he would try a different set of headphones and see if that helped.

Step 4: Test the hypothesis
description: Use an experiment to test your logical answer to the problem.
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~ Variable: Something in an experiment that you change, only one per experiment.
~ Constant: Factors in an experiment that stay the same.
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Step 5: Analyze Data
description: go over all the data you have and go over conclusions.
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Step 6: Draw a conclusion
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Step 7: Share results
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I hope this helps!
6 0
3 years ago
The makeup of all the different species in the world is...?
Kamila [148]
The answer is C:BIOLOGICAL DIVERSITY.
INFORM ME IF I AM WRONG.
8 0
3 years ago
Kim wants to grow some more plants in her garden. She has to plan carefully because she has an allergy to plant pollen. Which pl
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Most likely B. Hope I helped
3 0
3 years ago
Read 2 more answers
Community ecologists study the factors that determine the abundance of different species. The Abundance of three algae species (
Tema [17]

Answer:

Explanation:

Given that:

The abundance of three algal species in Lake A is now represented by the vectors:

[97, 84, 43] and [100, 80, 50]

Now if we look at Lake A, the change occurring in the vector of algae species can be determined as:

a = [100 -97, 80 - 84. 50 - 43]

a = [3, -4, 7]

Thus, the magnitude of that change is:

|a| = \sqrt{(3)^2 +(-4)^2+(7)^2}

|a| = \sqrt{9+16+49}

|a| = \sqrt{74}

|a| =8.6 \ mg/mL

The abundance of three algal species in Lake B is now represented by the vectors:

[25, 59, 22] and [20, 63, 15]

At Lake B, the change occurring in the vector of algae species can be determined as:

b = [20 -23, 63 - 59. 15 - 22]

b = [-3, -4, -7]

Thus, the magnitude of that change is:

|b| = \sqrt{(-3)^2 +(4)^2+(-7)^2}

|b| = \sqrt{9+16+49}

|b| = \sqrt{74}

|b| =8.6 \ mg/mL

Hence, for both Lake A and B, the magnitude of change is the same.

7 0
2 years ago
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