Lipid-soluble steroid hormones are synthesized from
A. cholesterol.
B. amino acids.
C. nucleotides.
D. proteins.
E. carbohydrates.
A. cholesterol.
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The Phylocode is a set of rules for
a. naming traditional taxa. b. making a phylogenetic tree. c. naming clades. d. creating binomials. e. insuring strict monophyly in classification.
Exocrine glands secrete all of the following EXCEPT ____
a. mucus b. hormones c. earwax d. milk e. digestive enzymes
The difference between septate hyphae and aseptate hyphae is
A. a difference in haploid and diploid cells. B. a distinction between saprotrophic fungi and parasitic or disease-causing fungi. C. a distinction between plasmodial masses with many nuclei and nonliving zygospores. D. a classification trait that separates basidiomycotes from ascomycotes. E. determined by whether the hyphae have cross walls or lack cross walls.
A microbiome is usually composed of
A. biospheres. B. a single species. C. ecosystems. D. populations E. sets of guilds.