The cellular organelle responsible for the digestion of ingested infectious agents is the
A. endoplasmic reticulum.
B. Golgi apparatus.
C. phagolysosome.
D. lysosome.
C
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The adhesion step in extravasation is most likely to be mediated by:
A. integrin proteins. B. cell wall proteins. C. collagen. D. keratin.
The relationship between the clownfish and the sea anemone it is associated with is an example of mutualism
Indicate whether the statement is true or false
The genotypic F2 ratio expected in a dihybrid cross is 9:3:3:1
Indicate whether the statement is true or false
Which of the following characteristics is shared by the skin and mucous membranes?
A) They are both constantly shedding and replacing cells. B) They both have cilia. C) The outer layers are composed of dead cells. D) Sebum may be present. E) Lysozymes are always present.