When seeds germinate, roots grow downward and stems grow upward in positive or negative responses to gravity. This response to gravity is called . Question 12 options: gravitropism hydrotropism phototropism thigmotropism

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

The first amino acid of a new polypeptide chain is

Aplant may open end close its stomata to prevent excess water loss and maintain