In which combination of locations would one who is searching for the gametophytes of "flower of stone" have the best chance of finding them?
1. moist soil
2. underground, nourished there by symbiotic fungi
3. south- or west-facing slopes
4. permanently shady places
5. far from any flower of stone sporophytes
A) 1 only
B) 1 and 2
C) 1, 2, and 4
D) 1, 2, and 5
C
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Through the process of ____ , some bacteria or archaeons derive energy by combining NH4 + and NO2 - (recall the equation NH4 + + NO2 - N2 + 2H2O)
Fill in the blank with the appropriate word.
Which of the following is not made from long chains of glucose?
A) Starch B) Monosaccharides C) Glycogen D) Cellulose
The convergence in external morphology of sharks, penguins, and porpoises is attributed to
A. reduced genetic variability in these groups. B. selection pressures that are common to these groups. C. reproductive isolation of these groups. D. identical genes in all three groups. E. use and disuse of the limbs.
Which genetic situation could most likely have confounded Mendel in his recognition of independent assortment?
A. Linked genes B. Crossing over C. Sex-linked inheritance D. Cloning E. Asexual reproduction