This image is an example of _____
1.a haploid gametophyte stage of red algae
2.a heterotrophic water mold
3.a freshwater diatom
4.one ciliate preying upon another
4
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Assuming that aerobic metabolism starts with glucose as its fuel, approximately _____% of the energy of the starting molecules will be captured in a useful form. The remaining energy will be converted to _____ and will be either lost or used to _____
A. 42; heat; warm the animal B. 42; electricity; keep the circulatory system functioning C. 58; heat; warm the animal D. 75; light; carry out photosynthesis E. 42; light; carry out photosynthesis
The pH at which most fungi thrive is
A. 3.0. B. 5.0. C. 7.0. D. 8.0.
Mitochondrial DNA differs from nuclear DNA in that it
A) crosses over within the same strand. B) is inherited from the father only. C) is present only in cells of the nervous and muscular systems. D) is poorer at DNA repair.
Which of the following is NOT true about conjugation in Archaea?
a. Some strains have plasmids that mediate conjugation between cells, similar to Bacteria. b. Some Archaea form specialized structures for genetic exchange between cells, which does not involve a fertility plasmid. c. Thermococcus produces nanotubes that allow for bidirectional DNA transfer. d. Conjugative plasmids in Archaea encode most of the same tra genes found in Bacteria, thus the mechanism of conjugation is similar.