Using the following words, explain the difference between DNA and RNA.

Nucleus, uracil, double helix

Which of the following descriptions of proteins are true? i. proteins can have different sequences of amino acids. ii. proteins can have different shapes. iii. proteins can have different numbers of amino acids. a. only i and ii are true. b. only ii and iii are true. c. only i and iii are true. d. i and ii and iii are all true. e. none are true statements

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

Which is a function of the central nervous system