Bio 112 Exam Verified Exam Questions and Answers Latest update
2026/2027
Question:
What taxonomic grouping would be placed inside the higher taxonomic group "order" and contain one
or more of the lower taxonomic groups "genus"?
Answer:
Family
Question:
Which of the taxonomic grouping could have Orders within it, but would be within a Phylum?
Answer:
Class
Question:
What would you call all living things of a particular species in a particular geographic area that can
interact and interbreed?
Answer:
A population
Question:
How would your write the scientific name of the bobcat? (Google search to find the name, then think
about how you might hand write it versus type it.)
Answer:
(Italicized) lynx rufus
Question:
I observe that crayfish seem to be absent from a stream near an industrial site. Crayfish are often
sensitive to different types of pollution. Because the industrial site is a steel mill, I suspect that metal
pollution is causing crayfish to die off in this stream. What would the above underlines statement be?
Why?
Answer:
It is a hypothesis because it is a provisional explanation of an observation based on an understanding
of how crayfish react to environmental problems, but it has not yet been tested.
Question:
I conduct an experiment to determine if the industrial plant is affecting the crayfish. I collect crayfish
from a different location that I know to be clean. I divide them into two groups. Group A is placed in
water collected from upstream of the industrial plant (so it should be cleaner water). Group B is placed
, in water collected from just downstream of the plant. I do the entire experiment in an environmentally
controlled room so all crayfish are at the same temperature, get the same amount of light, and I ensure
that they all get the same amount of food. I watch the crayfish for 2 weeks to see if different numbers
of crayfish survive in each group. In this experiment, what is Group A? What is Group B? What is one
controlled variable? What is the independent variable? What is the dependent variable?
Answer:
• In this
experiment, what is Group A? ◦ Control group
Question:
• What is Group B?
◦ Experimental group
• What is one controlled variable.
◦ Light, temperature, food
• What is the independent variable?
◦ Down stream water or upstream water
• What is the dependent variable?
◦ Survival of crayfish Very broadly, what is the difference between vertical descent with modification
and horizontal gene transfer?
Answer:
In VD with M, species accumulate changes, via mutation, within their lineage and can become new
species when enough changes accumulate (Other evolutionary forces like natural or sexual selection
subsequently affect those mutation). In HGT, different species can exchange particular, useful traits.
Question:
Why can some mutations cause no problems at all while others can be very damaging?
Answer:
Some mutations do not cause and change in the sequence of a gene's protein while others do cause a
change (If a mutation results in a change if DNA codes that call for particular amino acids, then it
changes the amino acid sequence).
Question:
What is an allele?
Answer:
It is a version of a gene
Question:
What are nucleotides?
Answer:
Building blocks of DNA consisting of a nitrogenous base, a sugar, and a phosphate
2026/2027
Question:
What taxonomic grouping would be placed inside the higher taxonomic group "order" and contain one
or more of the lower taxonomic groups "genus"?
Answer:
Family
Question:
Which of the taxonomic grouping could have Orders within it, but would be within a Phylum?
Answer:
Class
Question:
What would you call all living things of a particular species in a particular geographic area that can
interact and interbreed?
Answer:
A population
Question:
How would your write the scientific name of the bobcat? (Google search to find the name, then think
about how you might hand write it versus type it.)
Answer:
(Italicized) lynx rufus
Question:
I observe that crayfish seem to be absent from a stream near an industrial site. Crayfish are often
sensitive to different types of pollution. Because the industrial site is a steel mill, I suspect that metal
pollution is causing crayfish to die off in this stream. What would the above underlines statement be?
Why?
Answer:
It is a hypothesis because it is a provisional explanation of an observation based on an understanding
of how crayfish react to environmental problems, but it has not yet been tested.
Question:
I conduct an experiment to determine if the industrial plant is affecting the crayfish. I collect crayfish
from a different location that I know to be clean. I divide them into two groups. Group A is placed in
water collected from upstream of the industrial plant (so it should be cleaner water). Group B is placed
, in water collected from just downstream of the plant. I do the entire experiment in an environmentally
controlled room so all crayfish are at the same temperature, get the same amount of light, and I ensure
that they all get the same amount of food. I watch the crayfish for 2 weeks to see if different numbers
of crayfish survive in each group. In this experiment, what is Group A? What is Group B? What is one
controlled variable? What is the independent variable? What is the dependent variable?
Answer:
• In this
experiment, what is Group A? ◦ Control group
Question:
• What is Group B?
◦ Experimental group
• What is one controlled variable.
◦ Light, temperature, food
• What is the independent variable?
◦ Down stream water or upstream water
• What is the dependent variable?
◦ Survival of crayfish Very broadly, what is the difference between vertical descent with modification
and horizontal gene transfer?
Answer:
In VD with M, species accumulate changes, via mutation, within their lineage and can become new
species when enough changes accumulate (Other evolutionary forces like natural or sexual selection
subsequently affect those mutation). In HGT, different species can exchange particular, useful traits.
Question:
Why can some mutations cause no problems at all while others can be very damaging?
Answer:
Some mutations do not cause and change in the sequence of a gene's protein while others do cause a
change (If a mutation results in a change if DNA codes that call for particular amino acids, then it
changes the amino acid sequence).
Question:
What is an allele?
Answer:
It is a version of a gene
Question:
What are nucleotides?
Answer:
Building blocks of DNA consisting of a nitrogenous base, a sugar, and a phosphate
