1.         Of the following, which is considered the most unifying theme in biology?

A.            taxonomy

B.            physiology

C.            ecology

D.            genetics

E.            evolution

2.         The best description of a hypothesis is

A.    an explanation based on previous observations and used to predict further experimentation.

B.    a series of scientific observations that can be repeatedly reproduced.

C.    a single hypothesis leads to formulation of a scientific theory

D.    an explanation for observations which is strictly a "guess" by the experimenter.

3.    Homeostasis may be described as

A.    ability of the living body to reproduce.

B.    the same as photosynthesis.

C.    maintenance of a constant internal environment.

D.    a continuous supply of energy for living things.

E.     the responsibility of only the nervous system.

4.         This evening, as you relax over a few cool, refreshing beverages, the conversation with your friends drifts to what you've been studying in biology.  One of your friends says, "You know, I don't know how anyone can believe that evolution stuff.  After all, it's just a theory."  How will you explain to her that scientists use the word 'theory' in a different way than the general public does?  (3 pts)









5.         It is desirable that more than one individual be tested in an experiment, or that the experiment be performed many times because

A.   experimentation on just one individual may not give results which can be applied to everyone.

B.    the experimental individual may not be representative of the population as a whole.

C.    testing just once might produce results which are a 'fluke'.

D.    all of the above are valid reasons for having a large sample size or repeating an experiment.

6.         Glands which lack ducts, but rather dump their secretions directly into the blood are

A.   sweat glands.

B.    endocrine glands.

C.    exocrine glands.

D.    none of the above.

7.         Which description(s) best matches an epithelium?
     I. Blood vessels present.
     II. Closely packed, tightly connected cells.
     III. Fibers present in an intercellular matrix.
     IV. Covers a body surface or lines a passageway or cavity.
     V. Forms glands.

A.    I and III only.

B.    I, II, and V only.

C.    II, IV, and V only.

D.    I, II, IV, and V only.

E.     I, II, III, IV, and.

8.         Fat storage for energy, insulation, and a protective cushion are functions of

A.            columnar epithelium.

B.            adipose tissue.

C.            the periostium.

D.            serous membranes.

E.            epithelial tissue.

9.         Which term best describes the location of your chin compared to your navel?

A.           lateral

B.            posterior

C.            medial

D.            superior

E.            inferior

10.      The diaphragm separates which body cavities?

A.            posterior/anterior

B.            pleural/pericardial

C.            synovial/thoracic

D.            thoracic/abdominal

E.            mucous/synovial

11.      Which is a TRUE statement for a healthy human body?

A.            Internal conditions fluctuate widely from moment to moment.

B.            Internal conditions are constant and unchanging.

C.            Internal conditions are considerably different on any given day.

D.            Internal conditions remain stable, but vary within limits.