Bio 204 Final Exam Potential Questions
1. You are a paleoanthropologist. You uncover the skull of a hominid estimated
to be 3.3 million years old. Which of the following would be best for you to
initially compare it to?: Australopithicus afarensis
2. Which of these is NOT one of the four major categories of tissue?: blood
3. Which term describes a steady state in which the internal conditions of
an organism are kept within a narrow range without regard to the external
conditions?: Regulatory homeostasis
4. Which of the following actions is not a function of the epithelium?: Allows the
internal environment to alter its conditions to match those of the external environment
5. True or false? Organisms must maintain homeostasis because optimal en-
,zyme activity is achieved within a very narrow range of conditions.: True
6. Which component of a homeostatic system compares sensory information to
a target value?: Integrator
7. Which component of a homeostatic system perceives changes in some para-
meter of the environment?: Sensor
8. Which of the following statements describes a negative feedback response?-
: After a meal, blood sugar levels in the body rise; insulin is secreted to lower blood sugar levels.
9. Which of the following actions acts to warm a homeothermic body?
a) Sweating.
b) Panting.
c) Dilating blood vessels.
,d) Shivering.: D
10. Thermoregulation in the body is accomplished by several feedback systems.
The feedback system shown here uses vasoconstriction and vasodilation in the
skin and extremities to regulate body temperature.
Label the correct terms for the following sections:
A, B, C, D, and E.: A. vasodilation
B. body temperature decreases
C. homeostasis
, D. body temperature increases
E. vasoconstriction
F. negative
11. Which of the following terms best Described "Hot Blooded" animals?: En-
dotherms
12. Most tardigrades, rotifers & nematodes do not have specialized organs, such
as gills or lungs, to exchange O2 & CO2
with the environment. Why?: their small body size has a high
surface area:volume ratio
13. Which of the following two organic molecules must animals obtain from their
diets in order to grow and maintain their bodies?: Organic nitrogen and organic carbon
14. Mutualistic microorganisms living in herbivore alimentary canals help herbi-
vores digest .: Cellulose
1. You are a paleoanthropologist. You uncover the skull of a hominid estimated
to be 3.3 million years old. Which of the following would be best for you to
initially compare it to?: Australopithicus afarensis
2. Which of these is NOT one of the four major categories of tissue?: blood
3. Which term describes a steady state in which the internal conditions of
an organism are kept within a narrow range without regard to the external
conditions?: Regulatory homeostasis
4. Which of the following actions is not a function of the epithelium?: Allows the
internal environment to alter its conditions to match those of the external environment
5. True or false? Organisms must maintain homeostasis because optimal en-
,zyme activity is achieved within a very narrow range of conditions.: True
6. Which component of a homeostatic system compares sensory information to
a target value?: Integrator
7. Which component of a homeostatic system perceives changes in some para-
meter of the environment?: Sensor
8. Which of the following statements describes a negative feedback response?-
: After a meal, blood sugar levels in the body rise; insulin is secreted to lower blood sugar levels.
9. Which of the following actions acts to warm a homeothermic body?
a) Sweating.
b) Panting.
c) Dilating blood vessels.
,d) Shivering.: D
10. Thermoregulation in the body is accomplished by several feedback systems.
The feedback system shown here uses vasoconstriction and vasodilation in the
skin and extremities to regulate body temperature.
Label the correct terms for the following sections:
A, B, C, D, and E.: A. vasodilation
B. body temperature decreases
C. homeostasis
, D. body temperature increases
E. vasoconstriction
F. negative
11. Which of the following terms best Described "Hot Blooded" animals?: En-
dotherms
12. Most tardigrades, rotifers & nematodes do not have specialized organs, such
as gills or lungs, to exchange O2 & CO2
with the environment. Why?: their small body size has a high
surface area:volume ratio
13. Which of the following two organic molecules must animals obtain from their
diets in order to grow and maintain their bodies?: Organic nitrogen and organic carbon
14. Mutualistic microorganisms living in herbivore alimentary canals help herbi-
vores digest .: Cellulose
