___________ are constructed of all four basic tissue types.
(a) Organs.
(b) Systems.
(c) Cells.
(d) Organelles.
(d) Organelles.
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Bats use high ultrasonic sounds to perceive their environment much like humans use radar. In animals,
this process of detecting objects is called
a. sound reflection navigation. b. extra sensory perception. c. echolocation. d. ultralocation. e. auditory navigation.
If, someday, an archaean cell is discovered whose rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans, the best explanation for this apparent discrepancy would be _____
A) homology B) homoplasy C) common ancestry D) retro-evolution by humans
A species of caterpillar develops toxic spikes that deter the birds that prey on it. Over time, the genetics of the bird population shifts so that an allele for a digestive enzyme that neutralizes the toxin becomes more common
This is an example of A) mutualism. B) an invasive species. C) parasitism. D) coevolution. E) mimicry.
Which event in the typical life cycle of sexually reproducing fungi involves transition from a haploid to a diploid stage?
a. Karyogamy b. Plasmogamy c. Meiosis d. Germination e. Spore production