How can endospore-forming Firmicutes be selected?
a. by creating an anoxic environment
b. by heating the sample for 10 min at 80°C
c. by treatment with a strong dosage of ethylene gas
d. none of the above
Answer: B
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Which of the following is true regarding a balanced polymorphism?
A. The frequency of alleles is not changing over time B. The homozygous condition for the alleles is not advantageous to the organism C. The population (or species) occupies a heterogeneous environment D. An example in humans is sickle-cell anemia E. All of the answers are correct
A(n) _____________________ depicts the evolutionary relationships between related species
Fill in the blank(s) with correct word
HIV specifically targets cells of the ________ system
a. cardiovascular b. immune c. respiratory d. digestive
Science
A. answers questions concerning values and morals. B. creates theories and laws that are always true. C. is a process used to arrive at a solution to a problem. D. has all of the answers to the problems that plague mankind.