Sharks belong to this kingdom
A) cartilagenous
B) animalia
C) chondrichthyes
D) sharkilia
Ans: B) animalia
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Which of the following is not a characteristic of a transformed cell?
A. Alterations in chromosomes B. Decreased growth rate C. Changes in cell surface molecules D. Viral nucleic acid integrated into host DNA E. Capacity to divide indefinitely
Which cells are held in reserve to be used for a rapid response to subsequent intruders of the same type?
a. NK cells b. helper T cells c. cytotoxic T cells d. memory cells e. B cells
What are the structures labeled E in the accompanying figure?
A. Plasmodesmata B. Basement membranes C. Tight junctions D. Gap junctions E. Adhering junctions
Dissolved proteins in human plasma include which of the following?
I. fibrinogen II. hemoglobin III.immunoglobulin A) I only B) II only C) I and III only D) II and III only E) I, II, and III