1. What is a gene?(1 point) A. a structure that contains many chromosomes

B. a section of DNA that encodes a specific protein

C. a large molecule that performs a specific function

D. a point that joins two halves of a chromosome

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

Which statement best explains the relationship between an area is geography and the temperature of its surface water

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.