Hat is the difference between dna and rna?
a. dna is a protein and rna is a nucleic acid.
b. dna uses deoxyribose and rna uses ribose.
c. dna has adenine and rna has thymine.
d. dna has thymine and rna has uracil.

Classify the descriptions and examples as endocrine or neural control

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy