Which of the following types of cells would a flu virus most likely target as the means of entry into the body?
A. epithelial cells lining the respiratory system
B. epithelial cells on the skin's surface
C. red blood cells that are exposed through breaks in the skin
D. osteoclasts within bone cells
Answer: A
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Which of the following statements is correct?
a. Allopatric populations look different and use different resources. b. Allopatric populations look different and use the same resources. c. Allopatric populations look the same and use different resources. d. Allopatric populations look the same and use the same resources. e. Sympatric and allopatric populations both look the same and use the same resources.
What term best describes all of the species that live in a particular region?
a. population b. habitat c. niche d. community e. ecosystem
The component of the cytoskeleton that attaches to the chromosomes to separate them during anaphase is the
What will be an ideal response?
What enzyme is used to convert the toxic chemicals of respiration into hydrogen peroxide?