Energy is defined as the ability to a. burn b. lift heavy objects off the floor c. do work or make a change d. cook food over campfire

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

How do ratio scale and diagrammatic scale work

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?