If all the offspring of a cross had the genotype Aa Bb, the parents of the cross would most likely be
a. AA BB ? aa bb.
b. AA bb ? aa BB.
c. Aa Bb ? Aa Bb.
d. Aa bb ? aa Bb.
e. both AA BB ? aa bb and AA bb ? aa BB.
E
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Which of the following types of plants form symbioses with cyanobacteria (thus allowing them access to usable forms of nitrogen)? Select all correct choices
A. mosses B. aquatic ferns C. eudicots D. cycads
. As of 2011, how many species were listed in the IUCN’s Red List of endangered species?
a. 610,000 b. 6100 c. 61,000 d. 6,100,000
Which of the following is a true statement about cycads?
a. Cycads can be pollinated by beetles. b. Cycads are the most common gymnosperm. c. Cycad leaves are a source of ephedrine. d. Cycads have only one surviving species.
Organisms require _____ and _____ to maintain themselves, grow, and reproduce
Fill in the blank(s) with correct word