Testcrosses are used to determine the genotype of an organism.
a. true
b. false
Ans: a. true
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As much as 95% of BOD can be removed during secondary treatment
Indicate whether this statement is TRUE or FALSE.
Emergent properties are
a. characteristics of nonliving matter. b. exclusive to atoms but not molecules. c. neither exclusive to molecules nor compounds. d. characteristics that depend on the level of organization of matter but do not exist at lower levels of organization. e. exclusive to multicellular organisms.
Laboratory animals must be used to determine lethal and infectious doses of viruses.
Answer the following statement true (T) or false (F)
Which of the following statements about the graph is true?
A. Oysters have high mortality rates late in life. B. Oysters live longer than Hydra. C. Humans and oysters have similar life spans. D. Humans have low mortality rates early in life. E. Hydra and humans have parallel life spans.