Scabs and Clots to help stop cuts and scrapes from bleeding.
The answer is A, the bladderwort eats the tadpoles tail:)
Reactivity i am pretty sure
Cells that protect the body by engulfing foreign cells or producing antibodies are D. White blood cells.
The amount of gravitational pull helps determine the gases that can form an atmosphere around a large body in space. So the mass of an object also determines the density of these gases. Note that several factors come into effect for a large object to sustain their gases if present.
