Your food is mostly carbohydrates. What
elements are
carbohydrates made
from? What organisms on
Earth make
carbohydrates?

What is the following best defines climate?

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

2. which is the last step in the scientific method?