Organisms in this kingdom have cell walls, but cannot make their own food:

Which is a harmful role of bacteria of bacteria?

Why is the nitrogen cycle considered a closed system? A. because nitrogen is fixed by bacteria and assimilated by plants B. because nitrogen neither enters nor leaves the system C. because nitrogen is converted into nitrates and ammonia D.

If you wanted to learn more about about the experiences of an African American pioneer in a scientific field, whose life would you research?

A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 22.0 m/s and returns the shot with the ball traveling horizontally at 35.5 m/s in the opposite direction.

A true hero is the unifying force in the diverse society

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.