An explanation of many observations and tested hypotheses is the best description of a scientific theory.
Answer: 9,000
Explanation: 24 divided by 4 = 6 x 15 = 90 which is 9,000
There are different kinds of pathogens. The representation of the symbol that stands for the pathogen are;
- The helper T-cell is represented like a Circle with the Th wrote inside.
- The surface protein on the Th cell is the symbol that looks like this ⊥
or T Th cells.
Pathogens are known to be microorganisms that do invade the bloodstream. It can be easily see among the white cells.
Helper T-cell is known to consist of T-Lymphocytes which monitors the regulation of the immune system. T-cells are regarded as the helper cells that monitors the initial response in front of the pathogen. They includes; TH1, TH2, and TH17.
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Answer:
D.
Explanation:
TOEFL is a marker for how good your english is. Most colleges would ask that you take it if you are not a native speaker or have not done many classes in English. This is so that they know you can understand the lessons conducted in colleges