Actin forms cytoskeletal fibers called ________
Fill in the blank(s) with correct word
microfilaments
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Consider two islands located an equal distance from the mainland (colonization source). One island is large, the other is small. Which island will have a higher rate of change in species composition?
A. the small island B. the large island C. The rate of change in species composition will be the same on both islands. D. Species composition does not change at equilibrium.
In cases where a perpetual "arms race" occurs between biological antagonists, such as parasites and their hosts, sex is favored because it reduces linkage disequilibrium by recreating missing genotypes in an oscillating fashion
This hypothesis is called the ________ [two words] hypothesis. Fill in the blank(s) with correct word
Movement of soluble organic material through sieve tube members occurs through ____.
A. translocation B. active transport C. cohesion-tension D. transpiration E. facilitated transport
Which of the following groups has the most species?
A) domain B) order C) phylum D) kingdom