According to the clip, the light-capturing pigment molecules are called:
a) stroma.
b) photosystems.
c) photons.
d) electrons.
e) carotenoids.
Answer: b) photosystems.
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Many male songbirds have very distinctive songs that are used to attract females. These songs are an example of a ________ isolating mechanism.
A. postzygotic, ecological B. prezygotic, behavioral C. prezygotic, temporal D. postzygotic, mechanical E. prezygotic, gamete fusion
What is one component that is needed to perform a PCR?
A. primers B. DNA ligase C. RNA polymerase D. deoxynucleoside triphosphates
Anaphase
a. involves the lining up of the chromosomes across the equatorial plate. b. is the same in mitosis and meiosis I and II. c. is initiated when the chromosomes begin to move apart. d. results in an unequal distribution of chromosomes to the resulting cells. e. does all of these.
The Ebola virus targets cells of the
a. liver. b. kidney. c. spleen. d. liver and spleen.