Scientists believe life arose spontaneously from nonliving matter
Indicate whether the statement is true or false.
ANS: F, transitioned gradually
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Amyotrophic lateral sclerosis (ALS) usually causes death by ____
a. paralysis b. heart failure c. respiratory failure d. brain death e. liver failure
The type of reproductive isolation in which offspring are infertile because their chromosomes cannot align correctly during meiosis because of a different number of chromosomes being inherited from the two parents is
A. gametic isolation. B. mechanical isolation. C. hybrid infertility. D. hybrid inviability. E. temporal isolation.
During cellular respiration, NADH
A) is chemically converted into ATP. B) is reduced to form NAD+. C) delivers its electron load to the first electron carrier molecule. D) is the final electron acceptor.
What do hydropower and wind power have in common?
A. Both require the building of dams. B. Both lead to an increase in greenhouse gas emissions. C. Both result in the depletion of fossil fuels. D. Both require the use of photovoltaic cells. E. Both are renewable energy sources.