What additional piece of information must Jenny have in order to determine the age of the zircon? A. the thickness of sedimentary rock layers found near the zircon
B. the ages of any fossils found near her sample of zircon
C. the decay rates of radioactive uranium and lead

a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

im not intirely sure but i think the anwser is d relative humidity

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.