Why is food digested?

a

to build molecules

b

to obtain energy and building materials for cells

c

to make polymers

d

to control chemical reactions

e

all of the above

How often does the nurse change the feeding bag on a patient with continuous tube feeding? select one: a. every 6 hours b. every 12 hours c. every 24 hours d. every 8 hours?

Which of the following is an example of complex system one with many parts and many variables A food chain B a simple machine C a diagram D the atmosphere

What term describes the class of molecules that includes starch and glycogen? lipids nucleic acids carbohydrates proteins

Portion of the inner ear that contains sensory receptors for hearing is called

The gland that produces the largest number of different hormones and has the widest range of effects on the body's functions is the

Using your knowledge of organic molecules and the following experimental situation answer the next question. Experiment: A cellophane bag is filled with a starch and water. The bag is then immersed in a beaker filled with water and iodine.

Biodiesel is a type of fuel that can be made from animal fat. During production, animal fats are chemically reacted with alcohol to produce fuel. Biodiesel may be used as an energy source in vehicles.

Why must jelly have a pH of 2.0 to 3.5 in order to gel?

What type of tissue is specialized to become stretched or distended?

Which of these statements is true of scientific theories A. They are the beginning of research B. They are the last step in an experiment C. They can change over time D. They can never be proven wrong