Which best describes the structure of a DNA molecule? a. Two strands of dna linked together.
b. Two strands of amino acids linked together
c. Two strands of rna linked together
d. A strand of dna linked to a strand of rna
I'm between the top two. Please help guys!

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )