Which of these organs removes old or damaged blood cells from the blood that flows through it
a. pancreas
b. lymph node
c. thymus
d. spleen

Dermal tissue in plants stores 1.extra food 2.transports water and nutrients 3.transports waste materials 4.is similar to epithelial cells in animals

Afisherman is dragging his boat from the shore out into the ocean. match the following lists of areas he will move over in the correct order. continental rise continental slope continental shelf [tex]1.[/tex] [tex]2.[/tex] [tex]3.[/tex]

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?