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

James suffers from atherosclerosis, w condition that causes artery walls to harden and thicken. Atherosclerosis restricts blood flow to organs and tissues.

A car advertisement states that a certain car that emily miller loves can accelerate from rest to 70 km/h in 7 seconds. Find the cars average acceleration

a 8.8kg object undergoes an acceleration of 2.2 meters per sonds squared what is the magnitude of the resulting force acting on it

What is the acceleration of a 0.30 kilogram ball that is hit with a force of 25 N?

Suppose you lived in the crater copernicus on the side of the moon facing the earth. during what fraction of the time would you be able to see the stars?

What is the molar mass of an ideal gas if a 0.800 g sample of this gas occupies a volume of 200. mL at 50.0 oC and 720. mm Hg?

When unequal resistors are connected in parallel in a circuit,?

A piano tuner hears three beats per second when a tuning fork and a note are sounded together and six beats per second after the string is tightened. What should the tuner do next, tighten or loosen the string? Explain.

How much work is done? A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The answers are 3.0 J, 9.0 J, 27 J, 81 J.

Two capacitors are identical except that they have different insulators in the gap between the conductors. Capacitor A has an air filled gap while capacitor B uses a material with dielectric constant 3 to keep the conductors apart.