Which of the following is NOT a characteristic of living things? (a) use energy (b) maintain themselves (c) have the capacity to reproduce (d) are part of populations that remain constant from one...

Which of the following is NOT a characteristic of living things?

(a) use energy

(b) maintain themselves

(c) have the capacity to reproduce

(d) are part of populations that remain constant from one generation to the next

The macromolecules made from folded chains of amino acids are

(a) proteins.

(b) carbohydrates.

(c) lipids.

(d) nucleic acids.