The grouping "conidial fungi," also known as "imperfect fungi" or deuteromycetes, is a convenience grouping for
fungi that are not classified in other groups, because the conidial fungi ____.
a. have a dikaryotic phase in their life cycle
b. are unicellular
c. have no known sexual phase
d. have a haploid phase in their life cycle
e. lack a cell wall
ANSWER: c
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Green and purple bacteria are ________. This group of organisms removes electrons from sulfide, thiosulfate, and succinate to generate NADPH.
Fill in the blank(s) with the appropriate word(s).
What information is used to calculate the age-specific fertility rate, mx?
A. the net reproductive rate of females B. total number of offspring born to females within a reproductive age class C. the per capita growth rate of all females D. number of female offspring born to females within a reproductive age class E. the average age of first reproduction for females
Based on estimates that consider the NPP of Earth and human use of these resources, what is the carrying capacity of people calculated by scientists?
A) 6.6 billion B) 10.6 billion C) 21 billion D) 40 billion
A special strain of which organism is used to make Roquefort or bleu cheese?
A) Saccharomyces cerevisiae B) Leuconostoc mesenteroides C) Streptococcus lactis and Lactobacillus D) Penicillium E) Spirulina