Male Drosophila melanogaster accessory gland proteins increase egg production in fe-males. Why does this function represent a case of sexual conflict?
a. It doesn't because increased egg production will also increase a female's fitness.
b. It reduces female longevity and the chance of a female to mate with other males.
c. It effectively changes the mating system toward a form that is more favora-ble to males.
d. It reduces the fertility of female eggs.
e. B and C.
E
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Substances NOT usually found in normal human urine are
A. certain drugs. B. urea and uric acid. C. water molecules. D. glucose molecules. E. K+, H+, and other ions.
Which of the following would be considered a
type of eugenics?
a. gene therapy to cure a disease b. gene replacement to improve normal memory c. xenotransplantation of a healthy organ d. consumption of genetically enhanced foods e. more than one of these would be considered a type of eugenics
Overexploitation of many species has increased due to the growing demand for wild animals and plants, and
A) the dramatic increase in world population. B) global warming. C) technological advances that have made it easier to obtain the animals and plants. D) an increase in the number of core reserves. E) sustainable agriculture, which has become more popular.
Which step of the Krebs cycle requires both NAD+ and ADP as reactants?
A) step 1 B) step 2 C) step 3 D) step 4 E) step 5