The type of bond that forms between two atoms when electrons are shared is a(n) ________ bond.
A. covalent
B. kinetic
C. ionic
D. hydrogen
Answer: A
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Beta cells of the pancreas secrete
a. glucagon. b. glycogen. c. insulin. d. somatostatin. e. digestive enzymes.
The offspring of two heterozygous gray-bodied, normal-winged flies should be 50% graybodied/
normal wings (BbRr) and 50% black-bodied/vestigial wings (bbrr) because these alleles are linked. If a small number, say 15%, of the offspring are instead black-bodied with normal wings, this is most likely the result of: a. crossing-over. b. incomplete dominance. c. codominance. d. an error in meiosis. e. mutation.
In statistics, what is a sample?
A) the mean of a population to be studied B) a small subgroup of a population to be studied C) the correlation between the two different experimental factors D) a range of values with a high probability of containing the true mean
The light reactions occur in the ________, while the Calvin cycle occurs in the ________
A) stroma; thylakoid membranes B) stroma; nucleus C) cytoplasm; thylakoid membrane D) thylakoid membranes; stroma