Which of the following statements is true of electromagnetic waves but NOT mechanical waves. A. can travel through a medium
B. can travel through a vacuum
C. transfers energy
D. electromagnetic waves and mechanical waves are identical

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it