Ventilation _________ involves breathing air into the lungs call and breathing air out of the lungs called expiration.
Fill in the blank(s) with the appropriate word(s).
Answer: inspiration
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A nonfunctional gene near a similar but functional gene is called a(n)
A) pseudogene. B) expanded gene. C) phenocopy. D) transposon.
Macrocystis kelp communities have numerous ____ organisms while Laminaria kelp communities have ____ organisms
a. swimming, crawling b. crawling, swimming c. benthic, pelagic d. pelagic, benthic e. benthic, crawling
Simulation experiments like those first performed by
Stanley Miller in 1953 demonstrate that a. DNA forms readily and reproduces itself under abiotic conditions. b. many of the organic compounds required for life can form under abiotic conditions. c. prokaryotic cells form under simulated primitive atmosphere conditions. d. membranes eventually form under simulated primitive atmosphere conditions. e. none of these are true.
When considering whales and dolphins, the relative absence of hair is considered a __________
character within mammals. a. plesiomorphic b. ancestral c. synapomorphic d. phenetic e. cladistic