A meteor falls toward earths surface. given that the acceleration due to gravity is 9.8m/s^2 , what is the meteor's potential energy if it has a mass of 50 kg at an altitude of 300 m? A. 147,000 J
B. 1,531 J
C. 22,050,000 J
D. 16 J

Which properties describe all matter?

Fruit bats in central america eat bananas and other fruits. banana plants rely on bats for pollination. what would be the most likely consequence on the banana crop if fruit bats were eliminated from the area? the banana crop would increase because bats would stop eating the crops. the banana crop would decrease because bats would no longer pollinate the crops. the banana crop would remain constant because bees would replace the bats. the banana crop would remain constant because the plants would adapt using asexual reproduction.

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?