The pulmonary circuit specifically circulates blood ________.
A. from the heart to the liver
B. from the heart to the lungs
C. from the heart to the rest of the body
D. from the heart to the brain
Answer: B
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With regard to the cohesion-tension mechanism, "cohesion" refers to the
A) evaporation of water from the stomata of the leaf. B) attraction of water molecules for one another. C) use of water in photosynthesis, resulting in a shortage of water in the leaf. D) process of osmosis that pulls water into the root. E) tendency of water molecules to be attracted to minerals in the water.
What region is the major control center of X inactivation in mammals?
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A researcher is looking at a cellular sample using an electron microscope. They observe that while mRNA is being transcribed from the DNA that ribosomes are binding to the mRNA to make proteins. Is this sample from a bacterial or a eukaryotic cell?
What will be an ideal response?