Answer:
Answer is D.
Lymphocytes.
Explanation.
How Does the Immune System Work? When the body senses foreign substances (called antigens), the immune system works to recognize the antigens and get rid of them. B lymphocytes are triggered to make antibodies (also called immunoglobulins). These proteins lock onto specific antigens.
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The answer to your question is 5.100
7.5 x 10^3/5 x 10^-2
7.5/5 * 10^(3-(-2)) divide the numbers subtract the exponents
1.5 *10^5
Ok to start you need to break this into a net in your head. Next, calculate each triangle
(6*7)/2 = 21
Then, multiply each triangle by the amount of them.
21*4 = 84
Next, get the area of the square.
7*7 = 49
Lastly, add the triangles and the square up.
49 + 84 = 133
3 the answer is 3 because if you move 7 units over you get 3
