Which of the following is true for the cell shown
above?
a. They patrol the body looking for invaders.
b. They present antigens to other WBC’s.
c. They specifically interact with T-helper cells.
d. They mature only after they encounter damaged
tissue.
e. All of these are true.
Answer: e
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What does it mean if a plant is dioecious?
A. There is double fertilization of the embryo. B. Pollination and fertilization are separate events. C. There are separate male and female sporophytes. D. The sporophyte and the gametophyte are on the same plant.
What is the location of the third stage of aerobic respiration?
a. Matrix b. Inner mitochondrial membrane c. Chloroplast d. Stroma e. Cytoplasm
The greenhouse gas presently at highest concentration in the Earth’s atmosphere is methane
___________________ Indicate whether the statement is true or false.
________ is the scientific name of modern man.
Fill in the blank(s) with the appropriate word(s).