Studying the transcriptional activity of flagellar genes would not likely reveal differential changes when the cells are actively motile compared to nonmotile activity, because a two-component regulatory system is sufficient to control flagellar activity
Indicate whether the statement is true or false.
Answer: TRUE
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An ecologist recorded twelve white-tailed deer, Odocoileus virginianus, per square kilometer in one woodlot and twenty per square kilometer in another woodlot. What was the ecologist comparing?
A) density B) dispersion C) carrying capacity D) cohorts E) range
The method(s) used to study the reproductive behavior of armadillos included which of the following?
a. Statistical techniques. b. Polymerase chain reaction. c. Direct observation of mating. d. Statistical techniques and Polymerase chain reaction. e. Mark-release-recapture.
The indigenous plants and animals of the Galapagos Islands and Cape Verde Islands:a
are the same species as those found on the nearby mainland. b. are the same species on the two islands, but are different from those on the mainland. c. are the same species on the two islands and on the mainland. d. are similar to one another, but quite different from either adjacent mainland. e. resemble the nearest mainland species, but have evolved into new species
Unsustainable farming practices include
A) abandoning fields and allowing them to go through natural succession. B) using herbicides and pesticides. C) abandoning the use of irrigation to water fields. D) mulching fields after harvest. E) planting different crops in the same field in alternating years.