Biology, 11.05.2021 20:50 zeinabelsiblini
In which of the following situations will helper T cells be activated?
when an antigen is displayed by a macrophage that engulfed a pathogen
when a cytotoxic T cell releases cytokines
when cytotoxic T cells come in contact with a tumor cell
when B cells respond to T-independent antigens
Answers: 3
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Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries
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(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only
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When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?
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In which of the following situations will helper T cells be activated?
when an antigen is displayed...
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