Which best describes the structure of a dna molecule?
a. two strands of amino acids linked together

b. two strands of rna linked together
c. a strand of dna linked to a strand of rna
d. two strands of dna linked together

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.