Media that contains specific growth factors that allow even fastidious organisms to grow is called:
A. Differential
B. Selective
C. Transport
D. Enriched
Ans: D. Enriched
Biology & Microbiology
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When blood sodium levels fall, which hormone promotes sodium retention by the kidney in mammals?
A. cortisol B. aldosterone C. estrogen D. antidiuretic hormone E. testosterone
Biology & Microbiology
Primitive reptiles first appeared during the _____ period.
A. Carboniferous B. Cambrian C. Devonian D. Ordovician E. Silurian
Biology & Microbiology
A mammoth frozen in the Arctic tundra of Siberia would be an example of which type of fossilization?
a) Mummification b) Permineralization c) Carbonization d) Replacement
Biology & Microbiology
All of these humans are believed to have evolved in Africa EXCEPT
Select one: a. Homo erectus. b. Homo habilis. c. Homo rudolfensis. d. Neandertals. e. Homo ergaster.
Biology & Microbiology