In a marine ecosystem with an inverted biomass pyramid, which trophic level should have the smallest number of organisms?
A. phytoplankton
B. zooplankton
C. primary carnivores (sardines)
D. secondary carnivores (tuna)
E. detritivores
A. phytoplankton
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The timing of __________ is a feature distinguishing CAM and C4 photosynthesis
A. stomatal opening B. carbohydrate production C. operation of rubisco and the Calvin cycle D. mitochondrial respiration
Using gene therapy to correct ornithine transcarbamylase deficiency (OTC) would prevent buildup of ________ in the blood.
A) cholesterol B) RNA C) adenosine deaminase D) ammonia
Where does the gas exchange necessary to support photosynthesis take place?
a. mesophyll b. chloroplasts c. stomata d. thylakoids
__________ is the arrival of pollen grains on a receptive stigma. Fill in the blank(s) with the appropriate word(s)