Adifference between bacteria and archaea is

a. the makeup of their cell walls.
b. whether they have a cell wall.
c. size.
d. whether they have a nucleus.

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

Which of these statements are true about scientific theories and hypothesis

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?