The thermocline prevents ____ the top layer of the limnetic zone and the deep profundal zone
a. plankton growth in
b. vertical mixing between
c. autumn overturn in
d. photosynthesis in
e. detritus formation in
ANSWER: b
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In deuterostomes the blastopore develops into the mouth
____________________ Indicate whether the statement is true or false.
Cytochromes contain a heme group similar to that in hemoglobin. The iron atom (Fe) in the center of the group can be oxidized and reduced. If someone was suffering from iron deficiency anemia, what stage of cellular respiration would be most affected?
A. Glycolysis B. The electron transport chain C. Fermentation D. The Citric acid cycle
The structure at the tip of the red arrow is the ______ ______ of this enzyme.
Fill in the blank(s) with the appropriate word(s).
How large is a nuclear pore in the nuclear envelope?
A. larger than the endoplasmic reticulum B. larger than a ribosome C. smaller than a protein D. smaller than a ribosome E. larger than the Golgi apparatus