Which best completes the sentence? if something can respond to a stimulus then it
a. is a living thing.
b. might be a living thing.
c. is not a living thing.

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

Number and variety of living organism; includes genetic, species, and ecological types

Which of these reproductive method is the only on available to mosses and fernsspores