A nucleotide is
(A)DNA
(B)The scietific name for each of DNA's coding parts
(C)A collection of genes in a long, single strand of DNA

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

When ash and dust begin to settle on the ground, they eventually become compacted by

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.