Biology 152 - all worksheets exam with | | | | | | |
verified solutions |
Is the following an example of biological evolution in humans? Your immunity
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to COVID strengthens after receiving a COVID vaccine.
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| A) This is biological evolution of the human species.
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B) This is NOT biological evolution of the human species. - Correct answer ✔B)
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This is NOT biological evolution of the human species
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Which of the following is a non-random mechanism of evolution?
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| A) Genetic drift
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B) Genetic recombination
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C) Mutations in alleles
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D) Natural selection - Correct answer ✔D) Natural Selection
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How does a population gain phenotypes that are NEW to that group of
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individuals? (select ALL that apply) | | | | |
A) Genetic drift
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B) Genetic recombination
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C) Migration
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D) Mutations in alleles
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E) Natural selection - Correct answer ✔B,C,D
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,ome plants can form hybrids, but the offspring of those hybrids are sterile or
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inviable. What type of barrier to gene flow is this? | | | | | | | | | |
A) Behavioral
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| B) Temporal (also known as a barrier in time)
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C) Post-zygotic
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D) Allopatric
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E) Mechanical (also known as a physical barrier) - Correct answer ✔C
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Which of the following is a possible result of allopatric division of a population?
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A) Different mutations accumulate in each new population.
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B) Selective pressures differ somewhat in the different populations. C) The
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effects of genetic drift are stronger in the new populations compared to the
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original population. |
| D) Gene flow is slowed or stopped between the two new populations.
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E) All of these options are possible outcomes of one population being divided
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into two geographically separated populations. - Correct answer ✔E
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Based only on the timeline and associated information that we covered with
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this module, what could have caused the extinction of the dinosaurs?
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A) They were hunted to extinction by humans.
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B) They were globally out-competed by primates.
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C) They were not adapted to the first accumulation of oxygen in the
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atmosphere.
| D) All of these options are consistent with the timeline.
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, E) None of the other options are consistent with the timeline. - Correct answer
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✔E
Prokaryotes" include species that fall into which of the following nutritional| | | | | | | | | | |
categories? (select ALL that apply). | | | | |
A) Photoautotrophs.
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B) Chemoautotrophs.
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C) Photoheterotrophs.
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D) Chemoheterotrophs.
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E) No species of "prokaryotes" fall into any of the nutritional categories listed
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here. - Correct answer ✔A,B,C,D
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hy is it a bad idea to take antibiotics if we are not sick?
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A) We will build up immunity to the drugs.
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B) Viruses will become more harmful in response to the use of antibiotics.
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C) Resistant bacteria will become more common due to natural selection.
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D) A & B are correct.
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E) B & C are correct. - Correct answer ✔C
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Which of the following categories of selection is correctly matched with its
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description? |
A) Stabilizing selection selects for intermediate phenotypes (i.e., the
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intermediate phenotype leads to higher fitness than either of the more extreme | | | | | | | | | | | |
phenotypes). ' |
B) Directional selection selects for both extreme phenotypes.
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verified solutions |
Is the following an example of biological evolution in humans? Your immunity
| | | | | | | | | | | |
to COVID strengthens after receiving a COVID vaccine.
| | | | | | |
| A) This is biological evolution of the human species.
| | | | | | | | |
B) This is NOT biological evolution of the human species. - Correct answer ✔B)
| | | | | | | | | | | | | |
This is NOT biological evolution of the human species
| | | | | | | |
Which of the following is a non-random mechanism of evolution?
| | | | | | | | |
| A) Genetic drift
| | |
B) Genetic recombination
| | |
C) Mutations in alleles
| | | |
D) Natural selection - Correct answer ✔D) Natural Selection
| | | | | | | |
How does a population gain phenotypes that are NEW to that group of
| | | | | | | | | | | | |
individuals? (select ALL that apply) | | | | |
A) Genetic drift
| | |
B) Genetic recombination
| | |
C) Migration
| |
D) Mutations in alleles
| | | |
E) Natural selection - Correct answer ✔B,C,D
| | | | | |
,ome plants can form hybrids, but the offspring of those hybrids are sterile or
| | | | | | | | | | | | | |
inviable. What type of barrier to gene flow is this? | | | | | | | | | |
A) Behavioral
|
| B) Temporal (also known as a barrier in time)
| | | | | | | | |
C) Post-zygotic
| |
D) Allopatric
| |
E) Mechanical (also known as a physical barrier) - Correct answer ✔C
| | | | | | | | | | |
Which of the following is a possible result of allopatric division of a population?
| | | | | | | | | | | | | |
A) Different mutations accumulate in each new population.
| | | | | | |
B) Selective pressures differ somewhat in the different populations. C) The
| | | | | | | | | | | |
effects of genetic drift are stronger in the new populations compared to the
| | | | | | | | | | | | |
original population. |
| D) Gene flow is slowed or stopped between the two new populations.
| | | | | | | | | | | |
E) All of these options are possible outcomes of one population being divided
| | | | | | | | | | | | |
into two geographically separated populations. - Correct answer ✔E
| | | | | | | |
Based only on the timeline and associated information that we covered with
| | | | | | | | | | | |
this module, what could have caused the extinction of the dinosaurs?
| | | | | | | | | | |
A) They were hunted to extinction by humans.
| | | | | | | |
B) They were globally out-competed by primates.
| | | | | | |
C) They were not adapted to the first accumulation of oxygen in the
| | | | | | | | | | | | |
atmosphere.
| D) All of these options are consistent with the timeline.
| | | | | | | | | |
, E) None of the other options are consistent with the timeline. - Correct answer
| | | | | | | | | | | | | |
✔E
Prokaryotes" include species that fall into which of the following nutritional| | | | | | | | | | |
categories? (select ALL that apply). | | | | |
A) Photoautotrophs.
| |
B) Chemoautotrophs.
| |
C) Photoheterotrophs.
| |
D) Chemoheterotrophs.
| |
E) No species of "prokaryotes" fall into any of the nutritional categories listed
| | | | | | | | | | | | |
here. - Correct answer ✔A,B,C,D
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hy is it a bad idea to take antibiotics if we are not sick?
| | | | | | | | | | | | | |
A) We will build up immunity to the drugs.
| | | | | | | | |
B) Viruses will become more harmful in response to the use of antibiotics.
| | | | | | | | | | | | |
C) Resistant bacteria will become more common due to natural selection.
| | | | | | | | | | |
D) A & B are correct.
| | | | | |
E) B & C are correct. - Correct answer ✔C
| | | | | | | | |
Which of the following categories of selection is correctly matched with its
| | | | | | | | | | | |
description? |
A) Stabilizing selection selects for intermediate phenotypes (i.e., the
| | | | | | | | |
intermediate phenotype leads to higher fitness than either of the more extreme | | | | | | | | | | | |
phenotypes). ' |
B) Directional selection selects for both extreme phenotypes.
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