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If you see a sedimentary outcrop and red layers of sand are at the top of pale layers of rock, what does this tell you about the ages of the rock layers?

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?

Clownfish lay hundreds of eggs but only 10% to 15% survive into adulthood