BIO 182 Exam 2, Bio - Ch 37
Learning Curve, Chapter 37 Pre
Class Assignment, Biology Exam 3,
Misc. Chapter 38 achieve
questions , Chapter 39, bly 122 chp
37 learning curve, honors biology
exam four mocks 2025
What would happen to a mammalian heart if the
nerves leading to it were severed?
,A. The heart muscle would stop contracting.
B. The heart muscle would contract randomly.
C. The heart muscle would continue to contract
but its contraction rate may change.
D. Only the atria would be able to contract.
E. Systolic contraction would still occur, but
diastolic relaxation could not occur.
C
Which of the following statements describes a
similarity between fish and amphibian hearts?
A. Hearts in both groups function to pump blood
to the respiratory surface.
B. Hearts in both groups contain mixed
oxygenated and deoxygenated blood.
C. Hearts in both groups are a bridge between
the systemic and pulmonary circulatory
pathways.
D. Hearts in both groups have two atria.
,A
As fluid moves through a vessel, which factors
determine the flow resistance? (Select all that
apply.)
A. the radius of the vessel
B. the pressure exerted by the heart
C. the viscosity of the fluid
D. the length of the vessel
A,C,D
In which of the following animals does blood flow
directly from respiratory organs to tissues
without first returning to the heart?
A. amphibians
B. mammals
C. reptiles
D. birds
E. fish
, E
Which type of selection DECREASES overall
variability in the specific trait?
A. disruptive selection
B. natural selection
C. directional selection
D. stabilizing selection
D
On a hike through the forest, you see a large
male elk with antlers, and a smaller female elk
(doe) nearby without antlers. This difference
between the sexes is likely the result of:
A. intraspecific sexual selection.
B. a trait selected for storage of minerals.
C. interspecific sexual selection.
D. a trait selected for defense against predators.
A
Learning Curve, Chapter 37 Pre
Class Assignment, Biology Exam 3,
Misc. Chapter 38 achieve
questions , Chapter 39, bly 122 chp
37 learning curve, honors biology
exam four mocks 2025
What would happen to a mammalian heart if the
nerves leading to it were severed?
,A. The heart muscle would stop contracting.
B. The heart muscle would contract randomly.
C. The heart muscle would continue to contract
but its contraction rate may change.
D. Only the atria would be able to contract.
E. Systolic contraction would still occur, but
diastolic relaxation could not occur.
C
Which of the following statements describes a
similarity between fish and amphibian hearts?
A. Hearts in both groups function to pump blood
to the respiratory surface.
B. Hearts in both groups contain mixed
oxygenated and deoxygenated blood.
C. Hearts in both groups are a bridge between
the systemic and pulmonary circulatory
pathways.
D. Hearts in both groups have two atria.
,A
As fluid moves through a vessel, which factors
determine the flow resistance? (Select all that
apply.)
A. the radius of the vessel
B. the pressure exerted by the heart
C. the viscosity of the fluid
D. the length of the vessel
A,C,D
In which of the following animals does blood flow
directly from respiratory organs to tissues
without first returning to the heart?
A. amphibians
B. mammals
C. reptiles
D. birds
E. fish
, E
Which type of selection DECREASES overall
variability in the specific trait?
A. disruptive selection
B. natural selection
C. directional selection
D. stabilizing selection
D
On a hike through the forest, you see a large
male elk with antlers, and a smaller female elk
(doe) nearby without antlers. This difference
between the sexes is likely the result of:
A. intraspecific sexual selection.
B. a trait selected for storage of minerals.
C. interspecific sexual selection.
D. a trait selected for defense against predators.
A
