In the transfer of energy from the Sun to ecosystems, which molecule is one of the first to store this energy? *
O (1) protein
O (2) fat
O (3) DNA
O (4) glucose

Which of these resources is used worldwide to make construction products, pottery, and porcelain

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge