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Arteries and veins are the "tubes" that carry blood around the body.Artieries have thick outer walls in order to cope with the blood passing through being under such high pressure generated by t...

1. chromosomes are copied in the nucleus and condense into chromatids.2) the chromatids are pulled apart and move to opposite poles of the cell.3) the chromosomes separate.4) the cell divides5) 2 cells...

Camels are adapted to survive extremely dry conditions in deserts, where it is hot during the day and cold at night.They have the ability to go without water for long periods of time; their large humps al...

Hydrogen bonds that link complementary DNA base pairs in the cell's nucleus break and exposes the bases.Free RNA nucleotides in solution combine with their complementary bases of the single DNA strand.A w...

Osmosis is the passive movement of water across a semi permeable membrane from an area of high concentration to an area of low concentration.