melissa works at a day care center. she notices the ways infants respond to their parents at drop-off and pick-up time. match the type of attachment with the infant interactions.

Which plan groups foods according to types and indicates how much of each type should be eaten daily for a healthy diet? a.mypyramid plan b.food guide pyramid plan c.dietary guidelines for americans d.dietary pyramid guidelines

What are your thoughts on nonhuman trials? do you feel that testing should be done on animals? what are the advantages and disadvantages with nonhuman trails?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.