Drag the tiles to the correct boxes to complete the pairs. Match each organism to the reproduction strategy or structure it uses.
protection against
high predation of
young

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The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)