When a roller coaster is at the bottom of the hill it has a. Potential energy
b. Kinetic energy
c. Both Potential and Kinetic Energy
d. Chemical energy

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?