Which of the following is a component of bone?
a. plasma
b. platelets
c. osteocytes
d. leukocytes
Ans: c. osteocytes
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Sympatric speciation often occurs in animals through polyploidy
a. True b. False
Which of the following is the introduction of a non-mutated gene at a random location in the genome in hopes of curing a disease?
a. gene therapy b. polymerase chain reaction (PCR) c. gel electrophoresis d. recombinant DNA
_______ in the liver may play a role in producing the enzymes that help detoxify drugs.
A) mitochondria B) rough endoplasmic reticulum C) smooth endoplasmic reticulum D) Golgi apparatus
A microbe that grows only at the bottom of a tube of thioglycollate medium is probably a(n)
A) obligate aerobe. B) facultative anaerobe. C) aerotolerant anaerobe. D) microaerophile. E) obligate anaerobe.