Vitamin e protects membranes in red blood cells, white blood cells, nerve cells, and lung cells. why are these cells in particular in need of high amounts of vitamin e?

5) these are organisms where the genetic material is not bound by a nucleus. they are usually unicellular.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Speed is the ratio of the distance of an object moves to