The type of contraception that functions by
preventing implantation (even after successful
fertilization) is
a. tubal ligation.
b. spermicidal jelly.
c. birth control pills.
d. morning after pills.
e. diaphragm
D
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Unless a derived character state is lost or replaced by newer characters over evolutionary time, ____ can serve as
markers for ____ lineages that underwent adaptive radiation.
a. apomorphies; polyphyletic b. apomorphies; paraphyletic c. synapomorphies; monophyletic d. synapomorphies; polyphyletic e. synapomorphies; paraphyletic
All of the following are TRUE of adaptive traits
EXCEPT a. they allow individuals to adjust to the environment. b. they spread faster through populations of asexually reproducing organisms. c. they spread faster through populations of sexually reproducing organisms. d. variety results from mixing of the genetic traits. e. all of these are true.
Bacillus thuringiensis israeliensis (Bti) produces a protein that causes the destruction of the lining of the gut of insects that eat it and is therefore
A. a natural insecticide. B. a GM organism. C. the result of somatic cell transfer. D. all the above are true.
What are the consequences if decomposers are removed from the carbon cycle?
A) Fewer carbon compounds are broken down. B) CO2 levels in the atmosphere increase. C) Primary consumers are not able to consume as many producers. D) The burning of wood and fossil fuels increases.