Vaccination triggers an immune response which produces ________ immunity
A) artificial passive
B) natural passive
C) natural active
D) artificial active
E) both active and passive
D
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Match the terms appropriately
a. nitrogen-containing base, sugar, phosphate group(s) b. copy of an organism c. chromosome that does not determine sex d. DNA wrapped around histones e. fills in gaps, seals breaks in a DNA strand f. two chromosomes copies of each g. adds nucleotides to a growing DNA strand________ nucleosome________ clone________ nucleotide________ diploid________ DNA ligase________ DNA polymerase________ autosome
Fibroblasts are present in which tissue type?
a. connective tissue b. epithelium c. muscle d. nervous tissue e. all tissue types
What is the name of the specialized stinging cells that jellyfishes have as part of their epidermis, and which they use to paralyze small prey?
a. tentacles b. flame cells c. choanocytes d. cnidocytes
What observation does the Red Queen Hypothesis seek to provide an explanation for?
A. Rate of extinction of taxa is fairly constant over time. B. Rates of extinction vary substantially between different groups of organisms. C. Lineages become more resistant to extinction the longer they have been present. D. Rates of extinction vary substantially between different groups of organisms, and lineages become more resistant to extinction the longer they have been present. E. Immediately after speciation, risk of extinction is very high, but it eventually levels out.