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
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
,Aneurysms are the result of which of the following?
(Select all that apply.)
A. pressure pulses in arteries
B. the deterioration of elastin and collagen in arteries
C. pressure pulses in veins
D. the deterioration of elastin and collagen in veins
A,B
Both Charles Darwin and Alfred Russel Wallace
acknowledged the influence of the economist
Thomas Malthus in the development of their ideas
about natural selection. Specifically, Malthus's ideas
about geometric population growth implied that:
A. All of these choices are correct.
B. resources in every generation would be limited,
therefore individuals in every generation would have
to compete for those resources.
C. organisms should have a few, very fit offspring who
can compete for scarce resources.
D. only the largest and strongest individuals would
survive.
, E. organisms should have as many offspring as
possible.
B
Nonadaptive mechanisms of evolutionary change are:
A. mutation, sexual selection, and genetic drift.
B. migration (gene flow), sexual selection, and genetic
drift.
C. migration (gene flow), balancing selection, and
genetic drift.
D. mutation, genetic drift, and heterozygote
advantage.
E. migration (gene flow), mutation, and genetic drift.
E
Which of the following big sagebrush plants is the
most fit, based only on the information presented?
A. The individual that can survive with 10% less water
than the others in its population.
B. The individual that produces 5% more distasteful
chemicals, making it 2% less likely to be attacked by