Pheromones
a. are signaling molecules.
b. are released by one individual and influence
other individuals of the same species.
c. diffuse through the air.
d. help to regulate honeybee behavior.
e. are all of these
E
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What field of science studies life's origin and distribution in the universe?
a. Geology b. Herpetology c. Biology d. Astrobiology e. Ornithology
Why do crossing over and independent assortment occur during meiosis?
a. to increase genetic diversity b. to decrease genetic diversity c. to increase cell production d. to decrease cell production
All of the following pertain to transcription except
A. it is a process that contributes to the synthesis of protein. B. it requires RNA polymerase. C. it occurs before translation. D. it occurs on a ribosome in the cytoplasm. E. it requires a template DNA strand.
According to SSU rRNA gene sequencing, the amitochondriate Eukarya are ________, but a composite phylogenetic tree based on other eukaryotic genes suggests they are closely related to ________
a. ancient / fungi b. ancient / protists c. highly derived / fungi d. highly derived / protists