What is the most common threat to the human body from an invading virus? b. acid will ferment in the digestive system c. viral reproduction will destroy one healthy cells d. muscle tone in the heart will be stimulated

The carbohydrates stored in our muscles is called glycogen, and is present in abundant amounts allowing us to exercise for long periods of time. a. True b. False

Car manufacturers have begun to explore the use of biofuels, such as biodiesel, ethanol, and cooking oils made from plant material.

Plasma membranes contain all of the following except A) phospholipids B) peripheral steroids C) integral proteins D) glycolipids

What is the boundary where two plates meet and trenches are formed?

A little boy blows air into a rubber glove and ties a knot at the end of it. He realizes that he wants the puffed-up glove to be bigger, but he's already tied a knot that he cannot untie.

You have likely heard of investigators using DNA fingerprinting to identify individuals in crime scene investigations. Briefly describe your current understanding of the process of DNA fingerprinting.

Which autonomic system conserves energy by returning the body to a normal activity level through a lowered heart rate and blood pressure? a peripheral nervous systemb sympathetic nervous systemc somatic nervous systemd parasympathetic nervous system

The science of heredity

At which age range does the most intensive myelination of nerve cells occur?

The role of the excretory system is to rid the body of toxic waste products. Which of the following body systems also plays a direct role in removing waste products from the body? A) endocrine B) nervous C) respiratory D) skeletal