You have 5 blocks that are the same size, but different masses. which block would float highest in the water? a. 1kg b. 2kg c. 3kg d. 4kg

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?