Which of the following body systems does the immune systems rely on to provide the first line of defense against pathogens?

A. Integumentary system

B. Nervous system

C. Circulatory system

D. Endocrine system

Hydroelectric power relies on the transfer of energy from waves through what medium

Which of the following statements is the best definition of weather? Weather is the current conditions in the atmosphere. Weather is the usual conditions in the atmosphere. Weather is the average conditions in the atmosphere.

Use the equation d = st, where d = distance, s = speed, and t = time. If you ride your bike at a speed of 5 m/s for 10 seconds, how far do you travel? A. 0.5 m B. 5 m C. 2 m C D. 50 m

What force causes something to stop and slow down

The target substance of a drug is called a A. contraindicator. c. receptor. B. stimulator. d. transporter.

How are primary and secondary succession similar and how are they different?

What relates the net force exerted on an object to its mass and acceleration?

I'm a wave, the medium moves parallel to the direction that the wave travels

What is the wavelength of a wave that has a velocity of 32 m/s and a frequency of 60.6 Hz?

Two objects repel each other with a force of 8N. if