The sporangia (asci) of ascomycetes each ultimately produces:
A. eight diploid spores
B. four genetically identical haploid spores
C. four haploid spores, each genetically different
D. eight identical haploid spores
E. eight haploid spores, of which there are two each of four different genetic types
E. eight haploid spores, of which there are two each of four different genetic types
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Malassezia spp. are the MOST common fungi present on the skin of humans
Indicate whether the statement is true or false.
Ring species such as the greenish warbler complicate the biological species concept because (select all correct choices)
A. at least some of their populations are reproductively isolated from one another but can still exchange genetic material. B. at least some of their populations overlap spatially, but individuals in those populations do not interbreed with one another. C. individuals in at least some populations interbreed with individuals from other species. D. ring species comprise populations that are in the process of allopatric speciation. E. none of these
Answer the question using the accompanying figure. Of the fragments labeled A-D, which is the smallest?
a. A b. B c. C d. D e. it is impossible to tell
Which of the following best describers the reduction of the coenzyme NAD?
What will be an ideal response?