ATP, NADPH, CO2, and a five-carbon starter molecule called ribulose are needed for the _____________________ of photosynthesis to occur.
A. light-dependent reactions
B. light-independent reactions
C. light-capturing events
D. All of the choices are correct.
B. light-independent reactions
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Several species of sea urchins may inhabit the same tide pool and their reproductive periods overlap. Although they practice external fertilization, they seldom interbreed because eggs produce chemicals that are only attractive to sperm of their own species. This is an example of a _________ barrier that _______________.
A. prezygotic; causes geographic isolation B. prezygotic; causes temporal isolation C. prezygotic; prevents gamete fusion D. postzygotic; prevents zygote fusion E. postzygotic; causes hybrid infertility
Certain plants may form tissues called ________ when their roots are flooded, whereas other plants may always form these tissue types.
A. parenchyma. B. collenchyma. C. sclerenchyma. D. aerenchyma. E. None of the choices is correct.
The electron transfer chain is located
a. on the inner membrane of the mitochondria. b. on the inner membrane of the chloroplasts. c. in the fluid part of the chloroplast. d. throughout the cytoplasm of the cell. e. on the plasma membrane of eukaryotes.
A/n _______ is a chemical that destroys bacteria except for those in the endospore stage.
A) bacteriostat B) fungistat C) bactericide D) antibiotic