What provides a plant with new sources of nitrogen?

A. Water

B. Air

C. Fertilizer

D. Bacteria

Choose all that apply

What reactions occur within a star and its stellar equilibrium

Are the genes in the daughter cells produced by mitosis the same as or different from the genes in the original cell? Explain how this happens.

Exit Which of the following can be used to study and match yearly tree rings to date events back to a few thousand years? A. varves B. radiometric dating C. dendrochronology

Which of the following is a definition of reduction? a. Reduction is the gain of BOTH electrons AND oxygen. b. Reduction is the loss of electrons. c. Reduction is the gain of electrons. d. Reduction is the gain of oxygen.

Complete the sentences to test your knowledge of factors affecting microbial death rate.

Which of the following choices is a goal of sustainable practices? A. They focus on using resources for maximum productivity. B. They focus on using resources that can disappear if overused. C. They focus on using resources that can be renewed. D.

Why are atoms so important?

Which of the following is the best example of homeostasis in the human body? and why?

Dna determines the structure of proteins produce by cells?

What does a organism that is still has many cells produce spores and gets food from the enviroment