VMC006 Week 9 Biodiversity and election

Multiple Choice

What is the definition of a species?

• A species is a single organism that cannot reproduce with another organism.

• A species is a group of organisms capable of interbreeding and producing fertile offspring.
• A species is a collection of unrelated organisms.
• A species is defined by its habitat and environment.

Open Ended

Carl Linnaeus developed a binomial classification system for living things. Why is this contribution important?

Reorder

Reorder the following from largest group on left to smallest on right

• Phylum

• Class

• Order

• Family

• Genus

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Drag and Drop

The way you write the species name of an organism using binomial nomenclature, it that first you write the

Placeholder

then the ​

Placeholder

Drag these tiles and drop them in the correct blank above

Genus

Species

Order

Family

Kingdom

Multiple Choice

According to the graph, what happened to the moths over time?

• The dark-colored moth population increased while the light-colored moth population decreased

• The dark-colored moth population decreased while the light-colored moth population increase

• Both populations increased

• Both populations decreased

Horrible Histories Song: Darwin's Natural Selection Song - CBBC

You can open this webpage in a new tab.

Copy link

Open in new tab

Open Ended

Pick one of these arguments. Is there any counterargument/ evidence in support of the theory of evolution?

1.There are no intermediate forms between major types of animals such as reptiles and birds.

2. There is no evidence of early types of life

3. The world isn’t old enough to have allowed such slow change.

4.How could similar animals such as frogs have evolved the same way on separate continents?

5Intelligent design – such a complex structure as the human eye could not have just turned up.

Categorize

Options (20)

Individuals at one end of the curve have higher fitness

Average individuals have higher fitness

Individuals at both ends of a curve have higher fitness

Example: Antiobiotic resistance

Example: Both dark- and light-colored mice do better in their respective environments.

Maintains multiple alleles in population

e.g. sickle-cell trait in malaria regions

Selection favors one extreme phenotype over others

Can lead to rapid evolutionary changes in a population

Selection favors intermediate phenotypes

Example: Human birth weight where very low and very high weights have higher mortality

Reduces variation in a trait

Species with average traits are at a disadvantage

Can lead to speciation as populations diverge

Promotes genetic diversity within a population

Can lead to heterozygote advantage

Organize these examples into the correct category of natural selection.

Directional Selection

Stabilizing Selection

Disruptive Selection

Balancing selection

Multiple Choice

In the past, individuals in a population of mice had a wide variety of coat colours. After many generations, the mice either have white coats where they live in the snow or dark cats where they live on the soil, but medium colours are absent. If the number of mice with each coat colour was graphed which example would it look like?

• A
• B
• C

Multiple Choice

Starlings produce an average of five eggs. If there are more than five the parents cannot adequately feed the young. Fewer than five and predators may destroy them. As a result, five eggs becomes the most common number.

• Stabilizing

• Directional

• Disruptive

• Balancing

Multiple Choice

Which scenario best describes allopatric speciation?

• A population of birds is divided by a new river, leading to two separate groups that eventually evolve into different species.

• A new predator is introduced, causing changes in the prey species' behavior and habitat use.

• A species of plant develops a new type of flower within the same geographic area.

• Two different species breed and create a hybrid species.

Open Ended

Have a look at this animal. It was a Thylacine, a marsupial carnivore! Not even remotely related to a wolf/ dog. Why does it look so similar?

Categorize

Options (8)

Flower and a bee

Both species benefit

Tick and a dog

One species benefits. the other species is harmed

One species benefits, the other species is unaffected

Tiger shark & remora fish

Preying on other animals

Lynx & a hare

Symbiosis Relationships

Mutualism

Parasitism

Commensalim

Predation

Open Ended

How does artificial selection differ from natural selection?

Multiple Choice

In this phylogenetic tree, what do the nodes (branching points) represent?

• Points where the species converge into a single species (convergent evolution)

• Points that indicate the end of a species (extinction)

• Points where one species diverges into a separate species (speciation)