What is true about repetitive elements?

Select all that apply.

Repetitive elements have the ability to copy themselves and insert into new locations in chromosomes.
Repetitive elements are DNA nucleotides that are found in the genetic code of all proteins.
Repetitive elements are sections of DNA code that are repeated throughout the genome.
Repetitive elements are DNA fragments that control transcription.

individual oxygen atoms are formed during photosynthesis.-c.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

the fossil record provides evidence of a common ancestor to many species.

digestion

it excretes wastes