A new organism was found that was unicellular and 1 cm long. The "large" size of this organism alone would
A. mean that it could not be a bacterium.
B. mean that it had to be a protista.
C. mean little.
D. mean that it had to be in the domain eukarya.
C
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True or False: In the silkworm moth, Bombyx, pheromones are released by a male's antenna
A. true B. false
A biochemical synthesized in small quantities in one part of an organism and transported to another, where a target cell is affected is a(n)
A. spore. B. scion. C. enzyme. D. callus. E. hormone.
Most people with the dominant mutant polydactyly allele have extra digits, but at least 25% have the normal number of digits. What is the genetic explanation for this observation?
A) dominant negative allele B) temperature-sensitive allele C) lethal allele D) partial dominance E) incomplete penetrance
A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. This plant is probably most closely related to
A) mosses. B) charophytes. C) ferns. D) gymnosperms. E) flowering plants.