BIO 148 EXAM 1 QUESTIONS WITH CORRECT
ANSWERS
All living things are made up of MANY cells? - CORRECT ANSWER✔✔-false
| | | | | | | | | | |
What is TRUE about cells? - CORRECT ANSWER✔✔-Not all cells are the same size
| | | | | | | | | | | | | |
and shape, and not all living things are made up of many cells
| | | | | | | | | | | |
Tardigrades, also called water bears, are microscopic segmented
| | | | | | |
animals with eight legs. They are normally about 70 percent body
| | | | | | | | | |
water, but they can survive extreme dehydration (to just a few percent
| | | | | | | | | | |
body water) for up to 10 years! After a decade you can add water and
| | | | | | | | | | | | | |
the tardigrades will start swimming around. You enter a lab and your
| | | | | | | | | | |
new boss gives you five dehydrated tardigrades and asks you to
| | | | | | | | | |
demonstrate that the tardigrades are alive in their dehydrated state.
| | | | | | | | |
How would you demonstrate this? - CORRECT ANSWER✔✔-Record their energy
| | | | | | | | | |
use, because all living organisms acquire and use energy
| | | | | | | |
Which of the following is/are TRUE about all living things? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-All living things make proteins using ribosomes | | | | | |
How many of these statements are true? (Choose a number)
| | | | | | | | |
All prokaryotic cells have a cell membrane.
| | | | | |
,All prokaryotic cells contain DNA and RNA.
| | | | | |
All currently living prokaryotic cells came from other cells.
| | | | | | | |
Prokaryotic cells contain ribosomes | | |
Prokaryotic cells use the same genetic code as humans - CORRECT ANSWER✔✔-
| | | | | | | | | | |
5, all of them
| | |
In biology, "fitness" is defined as the relative ability of an individual to
| | | | | | | | | | | |
survive long enough to produce viable, fertile offspring (pass on its
| | | | | | | | | |
genes) in a given environment relative to others of the same species.
| | | | | | | | | | |
According to this definition, which of the following is the most fit? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-A beetle who reproduces once, has 10 surviving, fertile offspring,
| | | | | | | | | |
then dies |
According to the biological definition of evolution, an individual can evolve. -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-false |
Which of the following is a characteristic shared by all living things? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-They are composed of one or more cells AND they contain | | | | | | | | | | |
ribosomes
What statement is TRUE about cells on Earth today? - CORRECT ANSWER✔✔-All
| | | | | | | | | | | |
cells come from pre-existing cells.
| | | |
A eukaryotic organism.... - CORRECT ANSWER✔✔-possess membrane bound
| | | | | | | |
organelles AND uses the same type of genetic material as prokaryotes
| | | | | | | | | |
,A population is a group of individuals of the same species. According to the
| | | | | | | | | | | | | |
theory of natural selection, what is likely to happen to a population when a
| | | | | | | | | | | | | |
change occurs in its environment (for example, the amount of rainfall decreases
| | | | | | | | | | | |
or the temperature increases)? - CORRECT ANSWER✔✔-The individuals that have
| | | | | | | | |
traits better suited to the changed environment would be more likely to survive
| | | | | | | | | | | | | |
and reproduce than those with less suitable traits.
| | | | | | |
What does it mean to say that a characteristic of an individual organism is
| | | | | | | | | | | | | |
heritable? - CORRECT ANSWER✔✔-The characteristic can be passed on to
| | | | | | | | | |
offspring
Refer to the following description of moths shown in the image. Based on this
| | | | | | | | | | | | | |
information, which of the following would be predicted if trees became covered
| | | | | | | | | | | |
in soot, which makes tree bark darker in color? - CORRECT ANSWER✔✔-darker
| | | | | | | | | | | |
colored moths increase in frequency
| | | |
Refer to the description of moths in the image below. Based on this information,
| | | | | | | | | | | | | |
which of the following would be predicted if all predators of the moths died and
| | | | | | | | | | | | | | |
the trees became covered in lichens (which makes the bark lighter in color)? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-no change in the moth population ratio
| | | | | | |
Evolutionary change occurs in_______________. Natural selection acts on
| | | | | | | |
__________. When natural selection occurs, the genetic characteristics of a
| | | | | | | | | |
_________ change(s) over time. - CORRECT ANSWER✔✔-populations, individual
| | | | | | | |
organisms; population |
In the "Boars with personality" worksheet from class, you learned that boar
| | | | | | | | | | | |
aggression varies in the population and that female boars with low aggression
| | | | | | | | | | | |
scores have, on average, more offspring per year than those with high aggression
| | | | | | | | | | | | |
, scores. Which of the following do you need to know to determine if evolution by
| | | | | | | | | | | | | | |
natural selection will occur in this population with regard to the trait of
| | | | | | | | | | | | |
aggression? Choose ALL that apply - CORRECT ANSWER✔✔-the environment that
| | | | | | | | |
the boars live in and if aggression is a heritable trait in this boar population
| | | | | | | | | | | | | | |
In which of the following situations is evolution by natural selection most likely to
| | | | | | | | | | | | |
|occur? - CORRECT ANSWER✔✔-A population of mountain gorillas in which
| | | | | | | | | |
individuals with genes for long hair survive the cold better
| | | | | | | | |
One individual in a population fathers more offspring than all the other males in
| | | | | | | | | | | | | |
that population. Which statement best describes this situation? - CORRECT
| | | | | | | | | |
ANSWER✔✔-That male has a greater fitness than the other males | | | | | | | | |
The variation natural selection operates on is due to random mutations. Which of
| | | | | | | | | | | |
the following statements about natural selection is TRUE? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Natural selection is a directed (non-random) process—the likelihood | | | | | | |
one variant will be favored in a given environment over another is predictable,
| | | | | | | | | | | | | |
even if the origin of the variation is not.
| | | | | | | |
Based on the phylogenetic tree below, which of the following groups has a bony
| | | | | | | | | | | | | |
skeleton? - CORRECT ANSWER✔✔-Ray finned fish and amphibians
| | | | | | |
Based on the phylogenetic tree below, which is more closely related to crocodiles:
| | | | | | | | | | | |
amphibians, rabbits or birds? - CORRECT ANSWER✔✔-crocodiles are more
| | | | | | | | | |
closely related to birds| | |
Today's prokaryotes and their MRCA are a clade. - CORRECT ANSWER✔✔-false
| | | | | | | | | |
ANSWERS
All living things are made up of MANY cells? - CORRECT ANSWER✔✔-false
| | | | | | | | | | |
What is TRUE about cells? - CORRECT ANSWER✔✔-Not all cells are the same size
| | | | | | | | | | | | | |
and shape, and not all living things are made up of many cells
| | | | | | | | | | | |
Tardigrades, also called water bears, are microscopic segmented
| | | | | | |
animals with eight legs. They are normally about 70 percent body
| | | | | | | | | |
water, but they can survive extreme dehydration (to just a few percent
| | | | | | | | | | |
body water) for up to 10 years! After a decade you can add water and
| | | | | | | | | | | | | |
the tardigrades will start swimming around. You enter a lab and your
| | | | | | | | | | |
new boss gives you five dehydrated tardigrades and asks you to
| | | | | | | | | |
demonstrate that the tardigrades are alive in their dehydrated state.
| | | | | | | | |
How would you demonstrate this? - CORRECT ANSWER✔✔-Record their energy
| | | | | | | | | |
use, because all living organisms acquire and use energy
| | | | | | | |
Which of the following is/are TRUE about all living things? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-All living things make proteins using ribosomes | | | | | |
How many of these statements are true? (Choose a number)
| | | | | | | | |
All prokaryotic cells have a cell membrane.
| | | | | |
,All prokaryotic cells contain DNA and RNA.
| | | | | |
All currently living prokaryotic cells came from other cells.
| | | | | | | |
Prokaryotic cells contain ribosomes | | |
Prokaryotic cells use the same genetic code as humans - CORRECT ANSWER✔✔-
| | | | | | | | | | |
5, all of them
| | |
In biology, "fitness" is defined as the relative ability of an individual to
| | | | | | | | | | | |
survive long enough to produce viable, fertile offspring (pass on its
| | | | | | | | | |
genes) in a given environment relative to others of the same species.
| | | | | | | | | | |
According to this definition, which of the following is the most fit? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-A beetle who reproduces once, has 10 surviving, fertile offspring,
| | | | | | | | | |
then dies |
According to the biological definition of evolution, an individual can evolve. -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-false |
Which of the following is a characteristic shared by all living things? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-They are composed of one or more cells AND they contain | | | | | | | | | | |
ribosomes
What statement is TRUE about cells on Earth today? - CORRECT ANSWER✔✔-All
| | | | | | | | | | | |
cells come from pre-existing cells.
| | | |
A eukaryotic organism.... - CORRECT ANSWER✔✔-possess membrane bound
| | | | | | | |
organelles AND uses the same type of genetic material as prokaryotes
| | | | | | | | | |
,A population is a group of individuals of the same species. According to the
| | | | | | | | | | | | | |
theory of natural selection, what is likely to happen to a population when a
| | | | | | | | | | | | | |
change occurs in its environment (for example, the amount of rainfall decreases
| | | | | | | | | | | |
or the temperature increases)? - CORRECT ANSWER✔✔-The individuals that have
| | | | | | | | |
traits better suited to the changed environment would be more likely to survive
| | | | | | | | | | | | | |
and reproduce than those with less suitable traits.
| | | | | | |
What does it mean to say that a characteristic of an individual organism is
| | | | | | | | | | | | | |
heritable? - CORRECT ANSWER✔✔-The characteristic can be passed on to
| | | | | | | | | |
offspring
Refer to the following description of moths shown in the image. Based on this
| | | | | | | | | | | | | |
information, which of the following would be predicted if trees became covered
| | | | | | | | | | | |
in soot, which makes tree bark darker in color? - CORRECT ANSWER✔✔-darker
| | | | | | | | | | | |
colored moths increase in frequency
| | | |
Refer to the description of moths in the image below. Based on this information,
| | | | | | | | | | | | | |
which of the following would be predicted if all predators of the moths died and
| | | | | | | | | | | | | | |
the trees became covered in lichens (which makes the bark lighter in color)? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-no change in the moth population ratio
| | | | | | |
Evolutionary change occurs in_______________. Natural selection acts on
| | | | | | | |
__________. When natural selection occurs, the genetic characteristics of a
| | | | | | | | | |
_________ change(s) over time. - CORRECT ANSWER✔✔-populations, individual
| | | | | | | |
organisms; population |
In the "Boars with personality" worksheet from class, you learned that boar
| | | | | | | | | | | |
aggression varies in the population and that female boars with low aggression
| | | | | | | | | | | |
scores have, on average, more offspring per year than those with high aggression
| | | | | | | | | | | | |
, scores. Which of the following do you need to know to determine if evolution by
| | | | | | | | | | | | | | |
natural selection will occur in this population with regard to the trait of
| | | | | | | | | | | | |
aggression? Choose ALL that apply - CORRECT ANSWER✔✔-the environment that
| | | | | | | | |
the boars live in and if aggression is a heritable trait in this boar population
| | | | | | | | | | | | | | |
In which of the following situations is evolution by natural selection most likely to
| | | | | | | | | | | | |
|occur? - CORRECT ANSWER✔✔-A population of mountain gorillas in which
| | | | | | | | | |
individuals with genes for long hair survive the cold better
| | | | | | | | |
One individual in a population fathers more offspring than all the other males in
| | | | | | | | | | | | | |
that population. Which statement best describes this situation? - CORRECT
| | | | | | | | | |
ANSWER✔✔-That male has a greater fitness than the other males | | | | | | | | |
The variation natural selection operates on is due to random mutations. Which of
| | | | | | | | | | | |
the following statements about natural selection is TRUE? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Natural selection is a directed (non-random) process—the likelihood | | | | | | |
one variant will be favored in a given environment over another is predictable,
| | | | | | | | | | | | | |
even if the origin of the variation is not.
| | | | | | | |
Based on the phylogenetic tree below, which of the following groups has a bony
| | | | | | | | | | | | | |
skeleton? - CORRECT ANSWER✔✔-Ray finned fish and amphibians
| | | | | | |
Based on the phylogenetic tree below, which is more closely related to crocodiles:
| | | | | | | | | | | |
amphibians, rabbits or birds? - CORRECT ANSWER✔✔-crocodiles are more
| | | | | | | | | |
closely related to birds| | |
Today's prokaryotes and their MRCA are a clade. - CORRECT ANSWER✔✔-false
| | | | | | | | | |
