Phagocytes fol¬low a chemical trail of complement and cytokines to affected tissues in a process known as ______.

A. phagocytosis
B. activation
C. inflammation
D. adaptive response
E. chemotaxis


Answer: E

Biology & Microbiology

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The isotope 14C undergoes radioactive decay with a neutron splitting into an electron and a proton

This decay produces an atom of

a. iron. b. carbon. c. hydrogen. d. oxygen. e. nitrogen.

Biology & Microbiology

Studies of memory indicate that

a. short-term memory is the product of chemical changes in neurons. b. long-term memory is limited to a few year’s duration. c. long-term memories are lost more frequently than short-term memories. d. long-term memory retention is better for skill memory than for declarative memory. e. short-term memory is limited to several hundred bits of information.

Biology & Microbiology

The result of X inactivation is ____________________ between the sexes. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Human ABO blood type is controlled by the I locus and has three possible alleles. The alleles which code for type A blood (IA) and type B blood (IB) are codominant, while the allele for type O blood (i) is recessive. In a cross between a person with a genotype of IAi and a person with genotype IAIB, what is the probability of having three offspring with type A blood?

A. 1 B. 1/2 C. 1/4 D. 1/8 E. 1/16

Biology & Microbiology