What biological molecules enter the villi and then diffuse to the capillaries?
What will be an ideal response?
glucose, amino acids
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Which of the following conclusions is most likely to be correct?
A. These results suggest that the drug inhibits post-translational processing of this gene. B. These results suggest that the drug contains a protease that targets this gene product. C. These results suggest that the drug digests DNA. D. These results suggest that the drug affects RNA processing. E. These results suggest that the drug inhibits DNA replication.
Which groups of organisms harvest their energy directly from the environment?
a. Wolves b. Heterotrophs c. Autotrophs d. Deer e. Rabbits
Select the statement that most accurately describes the action of antimicrobial drugs today.
A. The development of antiviral drug resistance has not been observed, as compared to the high rate of antibiotic resistance seen today. B. Effective antiviral drugs have a long history of development and use. C. Antiviral drug treatment is more effective than vaccination against a viral disease. D. Antiviral drugs often result in toxic side effects due to their inhibition of host cell activity.
The net outcome of predator-prey interactions in the basic Lotka-Volterra models is that
A) the predator drives its prey to extinction and then goes extinct itself. B) the prey population declines and this causes the predator population to also decline. C) predator and prey populations eventually converge on equilibrium population sizes that are maintained into infinity. D) predator and prey populations oscillate, with each predictably increasing and decreasing in response to the other.