BIOSCI101 Evolution - Lecture 6

Question 1 of 11

1

Upon studying whether the classification of species is arbitrary or real, the general finding confirms that species are real and represent discrete groups that can reflect morphological, genetic and behavioural differences.

However at present there is no one general agreed species definition.

Select one of the following:

True
False

Explanation

Question 2 of 11

1

The biological species concept is at present the most commonly used concept.

A species is a group of ❌ whose members can ❌ and produce viable offspring but ❌ interbreed with members of other species.

Drag and drop to complete the text.

populations

interbreed

do not

do

Explanation

Question 3 of 11

1

One limit of the biological species concept is that it doesn’t apply to asexual organisms e.g. prokaryotes.

Select one of the following:

True
False

Explanation

Question 4 of 11

1

Other species concepts

The biological species concept focuses on reproductive barriers keeping species apart, other concepts emphasise unity within species.

1. ❌ species concept, distinguishes a species based on body shape and size.
2. ❌ species concept, defines a species in terms of its ecological niche.
3. ❌ species concept, defines a species as the smallest group of individuals that share a common ancestor.
4. ❌ species concept, defines a species as a group of organisms that share a common mate recognition system.

Drag and drop to complete the text.

Morphological

Ecological

Phylogenetic

Specific mate recognition

Explanation

Question 5 of 11

1

Fill the blank space to complete the text.

ALLOPATRIC SPECIATION

Allopatric speciation occurs when is interrupted as a result of a population being divided into geographically isolated subpopulations.

Explanation

Question 6 of 11

1

Label the images as either vicariance or dispersal allopatric speciation.

Drag an answer into the correct orange point.

Vicariance

Dispersal

Explanation

Question 7 of 11

1

Select from the dropdown lists to complete the text.

SYMPATRIC SPECIATION

Sympatric speciation can occur via ( polyploidy, diploidy, monoploidy ), ( sexual selection, natural selection ) and ( habitat differentiation, habitat integration ).

Two forms of polyploidy have been observed in plants – autopolyploidy (( self, other )) and allopolyploidy (( other, self )).

Explanation

Question 8 of 11

1

Click on the orange point and write the correct answer.

What type of sympatric speciation is this diagram representing?

Explanation

Question 9 of 11

1

Select all that are CORRECT with regards to Allopolyploidy.

Select one or more of the following:

An allopolyploid is a plant that is a hybrid between only one species.
The resulting polyploid plants contain chromosome sets derived from two or more species.
Most hybrids are sterile because their chromosomes
are not homologous and cannot pair during meiosis. (Such hybrids may be able to reproduce asexually).
In subsequent generations, mitotic or meiotic non-disjunction can double the chromosome number and change a sterile hybrid into a fertile polyploid.
Allopolyploids are fertile when mating with each other but can not mate with either parental species.

Explanation

Question 10 of 11

1

PATTERNS OF SPECIATION

❌ is gradual change within a single lineage over time.

❌ is evolutionary change produced by the branching of populations to form new species.

❌ is the rapid formation of many new species from a single ancestral group, characteristically to fill a new ecological area / zone.

❌ is the disappearance of a species from the earth, the fossil record reveals a low steady rate of extinction interrupted periodically by mass extinction.

Drag and drop to complete the text.

Anagenesis

Cladogenesis

Adaptive radiation

Extinction

Explanation

Question 11 of 11

1

Both anagenesis and cladogenesis occur but cladogenesis is generally considered to be responsible for the diversity of species over evolutionary time.

Select one of the following:

True
False

	Created by Eilidh Young over 9 years ago

Stage I The University of Auckland BIOSCI 101 Quiz on BIOSCI101 Evolution - Lecture 6, created by Eilidh Young on 19/06/2017.

BIOSCI101 Evolution - Lecture 6

BIOSCI101 Evolution - Lecture 6

Question 1 of 11

Upon studying whether the classification of species is arbitrary or real, the general finding confirms that species are real and represent discrete groups that can reflect morphological, genetic and behavioural differences. However at present there is no one general agreed species definition.

Select one of the following:

Explanation

Question 2 of 11

The biological species concept is at present the most commonly used concept. A species is a group of ❌ whose members can ❌ and produce viable offspring but ❌ interbreed with members of other species.

Drag and drop to complete the text.

Explanation

Question 3 of 11

One limit of the biological species concept is that it doesn’t apply to asexual organisms e.g. prokaryotes.

Select one of the following:

Explanation

Question 4 of 11

Drag and drop to complete the text.

Explanation

Question 5 of 11

Fill the blank space to complete the text.

ALLOPATRIC SPECIATION Allopatric speciation occurs when is interrupted as a result of a population being divided into geographically isolated subpopulations.

Explanation

Question 6 of 11

Label the images as either vicariance or dispersal allopatric speciation.

Drag an answer into the correct orange point.

Explanation

Question 7 of 11

Select from the dropdown lists to complete the text.

Explanation

Question 8 of 11

Click on the orange point and write the correct answer.

What type of sympatric speciation is this diagram representing?

Explanation

Question 9 of 11

Select all that are CORRECT with regards to Allopolyploidy.

Select one or more of the following:

Explanation

Question 10 of 11

Drag and drop to complete the text.

Explanation

Question 11 of 11

Both anagenesis and cladogenesis occur but cladogenesis is generally considered to be responsible for the diversity of species over evolutionary time.

Select one of the following:

Explanation

Upon studying whether the classification of species is arbitrary or real, the general finding confirms that species are real and represent discrete groups that can reflect morphological, genetic and behavioural differences.

However at present there is no one general agreed species definition.

The biological species concept is at present the most commonly used concept.

A species is a group of ❌ whose members can ❌ and produce viable offspring but ❌ interbreed with members of other species.

ALLOPATRIC SPECIATION

Allopatric speciation occurs when is interrupted as a result of a population being divided into geographically isolated subpopulations.