What's older, a fossil you find when you first start digging, or a fossil you find deeper in the ground after a
lot of digging?

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Mutations associated with albinism affect proteins involved in synthesis

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun