Which is not a benefit of biotechnology?

a.) dna fingerprints

b.) human insulin

c.) better crops

d.) penicillin production

Which of the following is an oxidation-reduction reaction? (pictured below)

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Look at the photo of the leaf. which term best describes this leaf?