what does the T helper 1 cell do? (TH1)
What will be an ideal response?
1. secretes IL-2 to activate CTL
2. stimulates eosinophils against Helminthes
3. TH-17 (a subset of TH1) recruits neutrophils to protect against fungi
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What is the function of the contractile vacuole?
A. to help single-celled organisms maintain homeostasis in a hypotonic environment B. to help single-celled organisms change shape in response to environmental changes C. to help maintain water balance for singlecelled organisms living in a hypertonic environment D. to maintain cell shape through turgor pressure
The term species richness refers to the number of species in a specific location. Indicate whether the statement is true or false
Reducing the water content of food is a highly effective way of reducing food spoilage
Indicate whether the statement is true or false
How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration?
A. 34 B. 30 C. 38 D. 36 E. 4