Predict what will happen to the concentration of pyruvate, NADH and H+ when the Krebs cycle is stopped by arsenic.

Pyruvate would increase, NADH would decrease, and intermembrane H+ would decrease as well.

Explanation:

Pyruvate - Pyruvate was still made through Glycolysis, and it is not used in the Krebs Cycle, so it increased.

NADH - NADH was not made by the Krebs Cycle, this causes it to decrease.

Intermembrane H+ - The Electron Transport Chain would not be able to have the electrons needed to move the H+ since it does not have NADH, causing it to decrease.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.