“just” a theory? when they disagree with the conclusions of scientists, some people argue that the scientific knowledge is “just a theory.” write a one- to two-paragraph response to this argument. what is the difference between the meaning of the word theory in everyday life and when it refers to scientific information? how likely is it that a scientific theory is correct?

Which nutrients contain nitrogen in addition to carbon hydrogen, and oxygen? a) vitamins. b) proteins. c) carbohydrates. d) fat

Mattias scheiden and theodor schwann studied plant and aniaml cells under a microscope. together these men concluded that plants and aniamals are made up of cells, which scientist furthered their study to complete our mordern cell theory

1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low