What type of thunderstorms do tornadoes come from most often? A. Air Mass/Frontal
B. Frontal/Super-cell
C. Air Mass/Moist-cell
D. Air Mass/Super-cell

Found evidence that the continents were joined together at one time.

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

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air