__________ species of many plants (and a few animals) originated by chromosome doublings and
hybridizations. Fill in the blank(s) with the appropriate word(s).
Polyploid
Biology & Microbiology
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Haploid organisms growing via mitosis from spores are called gametophytes
Indicate whether the statement is true or false.
Biology & Microbiology
At the end of the electron transfer chain, the
final electron acceptor is
a. ATP. b. oxygen. c. NADP+. d. water. e. NADPH.
Biology & Microbiology
The cell walls of fungi are composed mainly of
a. cellulose. b. lignin. c. chitin. d. pectin. e. protein.
Biology & Microbiology
An untied inflated balloon flies because
a. the pressure is higher inside than outside the balloon. b. the pressure is lower inside than outside the balloon. c. air flows down its pressure gradient. d. both a and c occur.
Biology & Microbiology