Yeasts are
A. multicelled heterotrophs.
B. All of the answer choices are correct.
C. single-celled autotrophs.
D. single-celled heterotrophs.
E. multicelled autotrophs.
D. single-celled heterotrophs.
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You can use Hardy-Weinberg to calculate allele frequencies, but not genotype frequencies. (Hardy-Weinberg can be used to convert genotype frequency into allele frequency, and vice versa.)
A. true B. false
Fungi can cause various diseases, but can also be involved in processes that are beneficial to humans. Which of the following things are the result of fungi? Select all correct choices
A. smut or rust crop infections B. leavened bread C. soy sauce D. certain skin infections E. some soft cheeses
Most angiosperms have alternate phyllotaxy. What allows each leaf to get the maximum exposure to light and reduces shading of lower leaves?
A) a leaf area index above 8 B) self-pruning C) one leaf only per node D) leaf emergence at an angle of 137.5°F from the site of previous leaves E) a leaf area index above 8 and leaf emergence at an angle of 137.5°F from the site of previous leaves
Which process is absolutely necessary for asexual cellular reproduction to occur in eukaryotes?
A. Prokaryotic fission B. Mitosis C. Meiosis D. Doubling of chromosomal number in descendent cells E. Growth factor activation