Principles of Biology 2 Final Exam 2026 |
Practice Questions & Verified Answers |
Comprehensive Biology Review
What is the most generally accepted species
concept? - Precise Answer ✔✔Biological species
concept
All of the following are pre-zygotic isolating factors
EXCEPT: - Precise Answer ✔✔genetic
incompatibility
Pre-zygotic isolating factors occur before what? -
Precise Answer ✔✔egg fertilization
Lions and Tigers can interbreed, but their offspring
(ligers or tigons) are infertile. This is an example of
what kind of reproductive isolating mechanism? -
Precise Answer ✔✔post-zygotic, genetic
incompatibility
Which term refers to the formation of a new species
through evolution? - Precise Answer ✔✔speciation
,Which one of these is an example of a prezygotic
factor? - Precise Answer ✔✔habitat isolation
Which of the following is a post-zygotic isolating
factor? - Precise Answer ✔✔genetic incompatibility
Which of the statements is true regarding adaptive
radiation? - Precise Answer ✔✔Adaptive radiation
is more likely to occur in a population produced by a
dispersal event than in a long-established population
on a continent.
Pre-zygotic isolating factors result in the failure of
the fertilized egg to develop into a fertile individual.
- Precise Answer ✔✔False
Allopatric speciation occurs after - Precise Answer
✔✔geographic barrier
What is the process by which organisms change in
response to each other and at the same time? -
Precise Answer ✔✔Co-speciation
There are two types of cats, the first type tends to
,breed during the spring and the other tends to breed
during the summer. What kind of reproductive
isolation is being expressed here? - Precise Answer
✔✔Pre-zygotic, Temporal isolation
What species concept might differentiate on the
basis of descent from a common ancestor? - Precise
Answer ✔✔phylogenetic species concept
What causes speciation among populations? -
Precise Answer ✔✔both natural selection and
genetic drift
Scientists are trying to determine the identity of an
insect discovered in the wild. The insect has a black
and yellow body, six legs, wings, and a stinger.
Based on this, the scientist determined that the insect
is a bumble bee. What concept did they use to come
to this conclusion? - Precise Answer
✔✔Morphospecies concept
All of the following are true about the biological
species concept EXCEPT: - Precise Answer ✔✔It
applies to both sexual and asexual organisms
, - does NOT apply to asexual or extinct
The defined term "species" is - Precise Answer ✔✔a
group of individuals that can exchange genetic
material through interbreeding to produce fertile
offspring
Which statements are true regarding hybridization?
Select all that apply. - Precise Answer ✔✔- Natural
selection sometimes acts against progeny that result
from hybridization.
- Hybridization occurs in plants more often than in
animals.
- Hybridization can result in fertile offspring
- Hybridization involves the transfer of genetic
material between members of similar species
Which of the following is NOT a type of pre-zygotic
isolation? - Precise Answer ✔✔genetic
incompatibility
Practice Questions & Verified Answers |
Comprehensive Biology Review
What is the most generally accepted species
concept? - Precise Answer ✔✔Biological species
concept
All of the following are pre-zygotic isolating factors
EXCEPT: - Precise Answer ✔✔genetic
incompatibility
Pre-zygotic isolating factors occur before what? -
Precise Answer ✔✔egg fertilization
Lions and Tigers can interbreed, but their offspring
(ligers or tigons) are infertile. This is an example of
what kind of reproductive isolating mechanism? -
Precise Answer ✔✔post-zygotic, genetic
incompatibility
Which term refers to the formation of a new species
through evolution? - Precise Answer ✔✔speciation
,Which one of these is an example of a prezygotic
factor? - Precise Answer ✔✔habitat isolation
Which of the following is a post-zygotic isolating
factor? - Precise Answer ✔✔genetic incompatibility
Which of the statements is true regarding adaptive
radiation? - Precise Answer ✔✔Adaptive radiation
is more likely to occur in a population produced by a
dispersal event than in a long-established population
on a continent.
Pre-zygotic isolating factors result in the failure of
the fertilized egg to develop into a fertile individual.
- Precise Answer ✔✔False
Allopatric speciation occurs after - Precise Answer
✔✔geographic barrier
What is the process by which organisms change in
response to each other and at the same time? -
Precise Answer ✔✔Co-speciation
There are two types of cats, the first type tends to
,breed during the spring and the other tends to breed
during the summer. What kind of reproductive
isolation is being expressed here? - Precise Answer
✔✔Pre-zygotic, Temporal isolation
What species concept might differentiate on the
basis of descent from a common ancestor? - Precise
Answer ✔✔phylogenetic species concept
What causes speciation among populations? -
Precise Answer ✔✔both natural selection and
genetic drift
Scientists are trying to determine the identity of an
insect discovered in the wild. The insect has a black
and yellow body, six legs, wings, and a stinger.
Based on this, the scientist determined that the insect
is a bumble bee. What concept did they use to come
to this conclusion? - Precise Answer
✔✔Morphospecies concept
All of the following are true about the biological
species concept EXCEPT: - Precise Answer ✔✔It
applies to both sexual and asexual organisms
, - does NOT apply to asexual or extinct
The defined term "species" is - Precise Answer ✔✔a
group of individuals that can exchange genetic
material through interbreeding to produce fertile
offspring
Which statements are true regarding hybridization?
Select all that apply. - Precise Answer ✔✔- Natural
selection sometimes acts against progeny that result
from hybridization.
- Hybridization occurs in plants more often than in
animals.
- Hybridization can result in fertile offspring
- Hybridization involves the transfer of genetic
material between members of similar species
Which of the following is NOT a type of pre-zygotic
isolation? - Precise Answer ✔✔genetic
incompatibility
