In this type of interaction, one organism is unharmed while the other benefits
a. commensalism
b. mutualism
c. symbiosis
d. predation
e. parasitism
A
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Which of the following female organisms contain two different sex chromosomes?
a. humans b. fruit flies c. cows d. butterflies e. cats
Predict the result when a phosphate-containing chemical is released by a factory into a pond
A) All living things will always die in such cases. B) Eutrophication will occur. C) Climax species will invade. D) Predatory fish will increase in population faster than other living things.
The Chi-square test involves a statistical comparison between measured (observed) and predicted (expected) values. One generally determines degrees of freedom as ________
A) the number of categories being compared B) the sum of the two categories C) one less than the number of classes being compared D) one more than the number of classes being compared E) ten minus the sum of the two categories
Please identify the complementary RNA sequence for the following DNA sequence: 5'-ACG TTA -3':
a. 5'-TGC AAT-3' b. 5'-UGC AAU-3' c. 5'-TAA CGT-3' d. 5'-UAA CGU-3' e. 5'-ATT GCA-3'