Which one of the following is the pigment found in redheads?

a) Keratin

b) Melanin

c) Pheomelanin

d) Cortex

If you stretch the nephron in a kidney from end to end they would be over 40 miles long explain how this structure directly relates to the function of the kidney

Which of the following balances is affected by the local force of gravity? A) Beam balance B) Analytical balance C) Spring balance

A charged particle is moving through a constant magnetic field. Does the magnetic field do work on the charged particle? A. yes, because the force is acting as the particle is moving through some distanceB.

A woman exerts a total force of 7 pounds in a horizontal direction on a box as she pushes it up a ramp that is 10 feet long and inclined at an angle of 30 degrees above the horizontal. Find the work done on the box.

Which of the following uses a filament to produce light? A. incandescent lights B. bioluminescent lights C. florescent lights D. neon lights

A bathroom scale is compressed 0.21 in. when a 210 -lb person stands on it. Assuming that the scale behaves like a spring that obeys Hooke's law, how much does someone who compresses the scale 0.06 in.

Explain what happens when a ferromagnetic material is made into a permanent magnet.

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light