As long as food is plentiful, a zygote fungus:
a. reproduces sexually
b. grows as a diploid organism
c. produces spores from an aerial hypha
d. forms gametangia
e. grows as a haploid mycelium and produces spores by mitosis
e
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A researcher wants to insert a DNA fragment into a plasmid. Which enzyme will join the two DNA molecules
together?
a. primase b. ?-galactosidase c. restriction endonuclease d. DNA ligase e. DNA polymerase
Which of the following is not true?
A) Throughout the year, Earth's axis maintains the same alignment relative to the plane of the ecliptic. B) During the winter months, Earth's axis is aligned towards Southern Cross. C) The axis through Earth's two poles points just slightly off Polaris. D) Earth's axis is titled 23.5° relative to the plane of the ecliptic.
Phylogenetic trees are built using:
a) similarities in the physical structure of organisms. b) similarities in the embryological development of organisms. c) similarities in the DNA sequences of organisms. d) tissue samples. e) a), b), and c) are all correct.
Which of the following circumstances would cause exponential growth to move into a logistic growth phase?
A. habitat alteration resulting in the conversion of 1,200 acres of forests into agricultural fields and housing developments B. the introduction of a non-native predator into the environment C. a reduction in the number of females within the population D. a large increase in the population over three generations E. All of these would cause exponential growth to move into logistic growth.