Which of the following statements about elements and atoms is true? Atoms are the smallest unit of an element.

Atoms are made of particles called elements.

Elements are made of more than one type of atom.

Elements are changed into atoms by a chemical reaction.

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?