Cytokinins are plant hormones that usually affect cell:
A. elongation
B. growth
C. division
D. wall expansion
E. turgor pressure
C. division
Biology & Microbiology
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Of the different types of bryophytes, which has the sporophyte generation that lives the longest?
A. mosses B. hornworts C. quillworts D. horsetails E. liverworts
Biology & Microbiology
Which of the following is the earliest form of seedless vascular plant?
a. Ferns b. Horsetails c. Club mosses d. Sporophylls
Biology & Microbiology
Which is not a common means by which patients acquire healthcare-associated infections?
a. direct contact with persons b. aerosol transmission c. resident biota infections d. infections of damaged tissue e.. fomite transmission f. contaminated food
Biology & Microbiology
Plant cell walls contain
A. chitin. B. collagen. C. cellulose. D. proteoglycans. E. laminins.
Biology & Microbiology