Electrons generated from the Krebs cycle go next to the ________.
A. fermentation pathway
B. electron transport chain
C. formation of alcohol
D. fluid portion of the mitochondrion
Answer: B
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Answer the following statements true (T) or false (F)
1. Animal biomass exceeds plant biomass in most ecosystems. 2. Air pollutants can increase heritable mutations. 3. Insect densities tend to decrease in elevated CO2, all things being equal. 4. Biomagnification of chemicals such as DDT results in lower trophic levels becoming enriched in these chemicals.
Animals grow mainly by increasing the number of body cells, while plants grow mainly by increasing cell size
a. True b. False
Exhalation _____
a. is always active b. is always passive c. may be both active and passive d. compresses alveoli e. may be both active and passive, and compresses alveoli
What kind of natural selection can cause two populations?
What will be an ideal response?