Which method of transport moves substances in or out of the cell that REQUIRES ENERGY?
a
diffusion
b
facilitated diffusion
c
osmosis
d
active transport
Question 2
Human red blood cells contain 0.9% sodium chloride as a component of their cytoplasm. What would happen if an IV solution containing 1.5% sodium chloride is introduced into a person?
a
The red blood cells will first lose water across their cell membrane, then absorb water across their cell membrane.
b
The red blood cells would first absorb water across their cell membrane, then lose water across their cell membrane.
c
Their red blood cells would lose water across their cell membrane and begin to shrink.
d
Their red blood cells would absorb water across their cell membrane and begin to swell.
Question 3
Crystals of dye, when placed in a beaker of water, eventually spread evenly throughout the water. This is an example of
a
phagocytosis.
b
active transport.
c
diffusion.
d
osmosis.
Question 4
Review table below: It shows the amino acids in a segment of the protein, hemoglobin. This protein is present in many species, and is shown compared to that of five species and to human hemoglobin.
Using the data in the table as an indicator of relatedness between species, indicate which species is LEAST closely related to humans.
a
Gorilla
b
Rhesus monkey
c
Kangaroo
d
Horse
e
Chimpanzee
Question 5
The table shows the number of amino acid differences seen in several species compared to humans. Using the data in the table as an indicator of relatedness between species, indicate which species is most closely related to the frog.
a
lamprey
b
human
c
pig
d
mouse
e
chicken
Question 6
Species A became extinct about 200,000 years before Species B evolved. Both species lived in the same location. In which arrangement would you MOST probably find their fossils in a rock sequence?
a
Species A would be in a deeper layer than Species B.
b
Species A would be inside Species B.
c
Species B would be in a deeper layer than species A.
d
Both would be in the same rock layer.
Question 7
The graph shows the percentage of different fur colors in a population of rabbits over time.
Which type of selection is demonstrated in the graph?
a
directional selection
b
disruptive selection
c
stabilizing selection
d
diversifying selection
Question 8
In general terms, equilibrium means a state of balance. Genetic equilibrium can occur if the allele frequencies in a population do not change over time. However, in order for genetic equilibrium to take place, which of the following conditions must be met: (Choose all that are correct)
a
There must be random mating and all of the members of the population must breed.
b
The population must be infinitely large.
c
There can be no migration into or out of the population.
d
No mutations can occur
e
No natural selection can occur.
f
None of these
Question 9
For a polygenic trait, the two extremes were selected for - therefore changing the allelic frequency in a population and the distribution of phenotypes. This is an example of _____.
SparkNotes: Natural Selection: Types of Natural Selection
a
disruptive selection
b
directional selection
c
behavioral selection
d
stabilizing selection
Question 10
A scientist maintains a healthy culture of a single species of bacteria in a container. She then introduces a new substance into the bacterial culture. Within a day, most of the bacteria died.
Which of the following best explains why some of the bacteria survived?
a
They mutated and became a different species after exposure to the substance.
b
They had a genetic variation that gave them resistance to the added substance.
c
They absorbed the substance and broke it down in their digestive systems.
d
They were exposed to the substance long enough to develop a resistance to it.
1 answer
1 answer