Using bright-field microscopy to look at a slide prepared with a basic dye you observe cells under 400X magnification with a clear inner compartment within the cell. The cell is most likely a(n)
A) prokaryote.
B) bacterium.
C) archaeon.
D) eukaryote.
Answer: D
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Under anaerobic conditions, pyruvate can be broken down by ____
Fill in the blank with the appropriate word.
The human body contains approximately 200 major cell types. They look and function differently from one another because:
A. each has a slightly different genome. B. each expresses a different set of genes. C. each expresses the same set of genes, but in different orders at different times. D. each has a slightly different genome and each expresses a different set of genes.
For roundworms living in the intestine of a
vertebrate, the cuticle most probably serves in what capacity? a. water retention b. nutrient absorption c. protection from digestive enzymes d. excretion of metabolic wastes e. sensory detection
Where in the body is blood pressure the highest?
A. aorta B. lung capillaries C. inferior vena cava D. renal capillaries E. superior vena cava