When plants perform photosynthesis, they use sunlight to produce food. this is an example of light energy being converted to -?

What is a group of organisms that are closely related and share similar characteristics

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d.higher

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids