Which processes of drug response are most subject to genetic variation?

a. drug dissolution in body fluids and drug binding to plasma proteins.
b. drug binding with receptors and drug blocking of receptors.
c. rates of drug movement into and through the gastrointestinal tract.
d. drug activation or deactivation and duration of drug actions.

Jason, a dog breeder, decides to mate a poodle with a golden labrador retriever. he wants to get puppies with the curly hair of the poodle and the color of the labrador. what concept is shown in this example? question 6 options: artificial selection adaptation evolution natural selection

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

Explain what is meant by a river’s load, and describe how the load is carried.