BIO EXAM#3 COGBOOK Questions
(checked) Complete Set Review With
Correct Answers.
Homeostasis is an organism's ability to .
a. obtain energy from food
b. interact with its specific environment
c. maintain a constant internal environment
d. survive without water for long periods of time - -c. maintain a constant
internal environment
(Section 4.1)
Lizards don't maintain their body temperature with internal heat. Rather, they bask in the sun to
get warm. This is an example of .
a. ectothermy
b. endothermy
c. mesothermy
d. positive feedback - -a.
ectothermy (section 4.1)
When faced with a sudden drop in environmental temperature, an endothermic animal will
.
a. experience a drop in its body temperature
b. wait to see if it goes lower
c. constrict blood vessels and work to maintain heat within the core of the body
d. add fur or fat to increase insulation - -c. constrict blood vessels and work to
maintain heat within the core of the body
(section 4.1)
,Which of the following is an example of positive feedback?
a. After eating a meal containing high glucose levels, the pancreas secretes more insulin, a
hormone that lowers blood glucose levels.
b. After cutting your finger, the injured tissue releases chemicals that activate platelets in the
blood. These activated platelets release chemicals to activate more platelets, leading to the
formation of a blood clot.
c. An elevation in blood pressure causes heart rate to decrease, thereby causing blood pressure
to decrease.
d. The secretion of the hormone TSH stimulates the thyroid gland to secrete thyroxine.
Thyroxine, in turn, inhibits the secretion of TSH. - -b. After cutting your finger, the
injured tissue releases chemicals that activate platelets in the blood. These activated platelets
release chemicals to activate more platelets, leading to the formation of a blood clot.
(Section 4.1)
Which of the following is most likely to be responsible for lowering your blood sugar after it rises
above normal?
a. The use of the sugar for energy by your cells.
b. A homeostatic mechanism based on negative feedback.
c. Type II diabetes
d. A homeostatic mechanism based on positive feedback. - -b. a homeostatic
mechanism baseed on negative feedback
(section 4.1)
Which of the following is not a type of tissue?
a. Muscle
b. Nervous
c. Embryonic
d. Epithelial - -c.
embryonic (section 4.2)
What type of tissue is adipose tissue?
, a. Muscle
b. Connective
c. Epithelial
d. Nervous - -b.
connective (section 4.2)
What tissue type is characterized as being excitable and capable of sending and receiving
electrochemical signals that provide the body with information?
a. Muscle
b. Epithelial
c. Connective
d. Nervous - -d.
nervous (section 4.2)
Striations, cylindrical cells, and multiple nuclei are observed in .
a. skeletal muscle only
b. cardiac muscle only
c. smooth muscle only
d. skeletal and cardiac muscles - -a. skeletal muscle only (section
4.2) The nerve impulse travels down a(n) , away from the cell body.
a. dendrite
b. axon
c. microglia
d. collagen fiber - -b.
axon (section 4.2)
Which of these processes occurs in the mouth?
a. Ingestion
(checked) Complete Set Review With
Correct Answers.
Homeostasis is an organism's ability to .
a. obtain energy from food
b. interact with its specific environment
c. maintain a constant internal environment
d. survive without water for long periods of time - -c. maintain a constant
internal environment
(Section 4.1)
Lizards don't maintain their body temperature with internal heat. Rather, they bask in the sun to
get warm. This is an example of .
a. ectothermy
b. endothermy
c. mesothermy
d. positive feedback - -a.
ectothermy (section 4.1)
When faced with a sudden drop in environmental temperature, an endothermic animal will
.
a. experience a drop in its body temperature
b. wait to see if it goes lower
c. constrict blood vessels and work to maintain heat within the core of the body
d. add fur or fat to increase insulation - -c. constrict blood vessels and work to
maintain heat within the core of the body
(section 4.1)
,Which of the following is an example of positive feedback?
a. After eating a meal containing high glucose levels, the pancreas secretes more insulin, a
hormone that lowers blood glucose levels.
b. After cutting your finger, the injured tissue releases chemicals that activate platelets in the
blood. These activated platelets release chemicals to activate more platelets, leading to the
formation of a blood clot.
c. An elevation in blood pressure causes heart rate to decrease, thereby causing blood pressure
to decrease.
d. The secretion of the hormone TSH stimulates the thyroid gland to secrete thyroxine.
Thyroxine, in turn, inhibits the secretion of TSH. - -b. After cutting your finger, the
injured tissue releases chemicals that activate platelets in the blood. These activated platelets
release chemicals to activate more platelets, leading to the formation of a blood clot.
(Section 4.1)
Which of the following is most likely to be responsible for lowering your blood sugar after it rises
above normal?
a. The use of the sugar for energy by your cells.
b. A homeostatic mechanism based on negative feedback.
c. Type II diabetes
d. A homeostatic mechanism based on positive feedback. - -b. a homeostatic
mechanism baseed on negative feedback
(section 4.1)
Which of the following is not a type of tissue?
a. Muscle
b. Nervous
c. Embryonic
d. Epithelial - -c.
embryonic (section 4.2)
What type of tissue is adipose tissue?
, a. Muscle
b. Connective
c. Epithelial
d. Nervous - -b.
connective (section 4.2)
What tissue type is characterized as being excitable and capable of sending and receiving
electrochemical signals that provide the body with information?
a. Muscle
b. Epithelial
c. Connective
d. Nervous - -d.
nervous (section 4.2)
Striations, cylindrical cells, and multiple nuclei are observed in .
a. skeletal muscle only
b. cardiac muscle only
c. smooth muscle only
d. skeletal and cardiac muscles - -a. skeletal muscle only (section
4.2) The nerve impulse travels down a(n) , away from the cell body.
a. dendrite
b. axon
c. microglia
d. collagen fiber - -b.
axon (section 4.2)
Which of these processes occurs in the mouth?
a. Ingestion
