Which of the following represents the primary factor that determines crop success?

a. soil quality
b. crop rotation
c. pesticide application
d. marketing budget


a. soil quality

Biology & Microbiology

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Which bones are most likely to be hollow in any given species of bird?

a. furcula b. sternum c. skull d. humerus

Biology & Microbiology

If one reproductive strategy of a eukaryotic organism is gamete fusion, what can be concluded about that organism? 

A. The organism participates in horizontal gene transfer. B. Progeny organisms are identical to each other. C. The organism participates in vertical gene transfer. D. The organism reproduces asexually.

Biology & Microbiology

Which group of Archaea are chemoautotrophic anaerobes that use hydrogen as an electron donor and sulfur compounds as terminal electron acceptors?

A. Thermoacidophiles B. Halophiles C. Methanogens D. Cyanobacteria

Biology & Microbiology

What are coadapted gene complexes?

a. genes that are located on the same chromosome b. codominant alleles c. favorable combinations of alleles at different loci d. any epistatic interaction between different loci e. A and C

Biology & Microbiology