Mycorrhizae are fungi that are symbiotic with plants. What is the likely relationship between these fungi and plants?
A) The fungi provide soil nutrients to the plants; the plants provide food to the fungi.
B) The fungi remove bacteria from the soil; the plants provide water to the fungi.
C) The fungi provide CO2 to the plants; the plants protect the fungi from predators.
D) The fungi remove predators from the plants; the plants provide shelter for the fungi.
A
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How old is our planet Earth?
A. 6,000 years old B. 4.6 billion years old C. 4.6 million years old D. We do not have enough information to accurately date the age of Earth.
Four of the five answers listed below are
heterotrophic. Select the EXCEPTION.
a. consumers b. carnivores c. herbivores d. parasites e. producers
What is the only source of all new alleles?
a. mutation b. gene flow c. genetic drift d. natural selection e. genetic polymorphism
What is the fate of the NADH and FADH2 made during the first stages of aerobic respiration?
A. They carry electrons to the electron transport chain. B. They carry electrons to water. C. They carry them to the Calvin cycle to reduce carbon dioxide. D. They carry electrons to acetylaldehyde producing ethanol or lactic acid. E. They carry electrons to the Krebs cycle.