Piaget believed that language helped foster cognitive development.

2. your driving record a. is totally confidential. b. may be available to the public. c. is available only to your employer with your authorization.

What percentage of the earth's water is available for use by living things?

The chart below matches messenger rna codons with amino acids. a dna strand has the sequence of bases, aat. according to the chart, the corresponding messenger rna codes for which amino acid?