Which of the following is the best definition of work? a. something that happens when a force is applied to an object and the object moves. b. the amount of force that you apply an object. c. the distance over which an object travels with time.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Mark creates a graphic organizer to review his notes aboutelectrical force.which labels belong in the regions marked x and y?

Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.