Increased atmospheric CO2 is ________ the oceans, and it is expected to be detrimental to marine ________ such as corals, foraminifera, and coccolithophores
a. acidifying / calcifers
b. neutralizing / silicates
c. alkalizing / protists
d. warming / algae
Answer: A
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A tissue sample is sent to the laboratory and microscopically examined for the presence of amebae. To differentiate between the host cells and the organism, _______ stain is used to allow the organisms to appear bright pink with a green-blue background
a. Trichrome b. Giemsa c. Wright's d. periodic acid–Schiff (PAS)
Which reaction is most likely to have more products than reactants when it reaches equilibrium?
a. DG = -25 kcal/mol
b. DG = -50 kcal/mol c. DG = -75 kcal/mol d. DG = -100 kcal/mol e. They will all have the same ratio of products to reactants regardless of the DG value.
Which of the following scenarios exemplifies cancer therapy targeted toward a specific mutation?
A) A patient with leukemia receives chemotherapeutic drug that inhibits DNA synthesis. B) A benign tumor is surgically removed from a patient's kidney. C) A patient with melanoma receives a drug that targets a signal transduction pathway protein. D) A patient with two mutant tumor-suppressor alleles receives radiation and a chemotherapeutic drug that blocks mitosis.
Rods and cones, like most sensory receptors, depolarize open receiving a stimulus.
Answer the following statement true (T) or false (F)