Which of the following gases has no effect in the blood until hyperbaric conditions occur (as in SCUBA diving when one stays down too long at great depths), when a condition called ""rapture of the deep"" occurs, producing a narcotic-like effect, as this gas interacts with other blood chemicals?

a. Nitrogen
b. Oxygen
c. Carbon monoxide
d. Carbon dioxide
e. Helium

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

Crossing over is a method of (blank)?

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.