Terrestrial biomes are defined in a large part by ________.
A. the dominant animals that live there
B. the longitude of the biome
C. the altitude of the biome
D. the dominant plants that live there
Answer: D
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What is the difference between NAD+ and NADP?
A) NAD+ functions as an electron transporter, whereas NADP does not. B) NAD+ functions as a free-energy source for cells, whereas NADP does not. C) Both function as electron carriers, but NADP has a phosphate group and NAD+ does not. D) Both transport electrons to the electron transport chain (ETC) found on the inner mitochondrial membrane, but NADP transfers its electrons to the ETC at a higher energy level.
Dosage compensation refers to the fact that:
A. the level of expression for a given gene is directly related to the number of copies of the gene. B. genes on the Y chromosome must be expressed at higher levels than would otherwise be the case because they are not homologous with genes on the X chromosome. C. genes on the X chromosome must be expressed at lower levels than would otherwise be the case because they are not homologous with genes on the Y chromosome. D. X chromosome genes must be regulated differently in males and females because members of one sex have 2 X chromosomes, whereas members of the other have only 1. E. None of these choices are correct.
Seedless vascular plants found in deserts do not require water for sperm to swim to eggs
Indicate whether the statement is true or false.
Ultimately, into what molecule are the
electrons released from glucose in aerobic respiration incorporated?
a. carbon dioxide b. ATP c. oxygen gas d. water e. NADH