Speciation Review

Multiple Choice

Species A and Species B have mated and reproduced offspring, however, their offspring is infertile (cannot have babies). Why?

• the offspring is a result of 2 different species

• there was a mutation in the offspring preventing it from producing gametes

• nondisjunction occurred where the offspring did not get all the chromosomes is needed from its parents

• the offspring is a new species and needs another of its own to be able to mate

Multiple Choice

The term for the formation of new and distinct species over the course of evolution is...

• Evolution

• Mutationism
• Speciation
• Divergence

Multiple Choice

Variations in a population are caused by:

• random mutations

• natural selection

• artificial selection

• selective breeding

Multiple Choice

When has speciation occurred?

• When populations no longer look the same

• When populations no longer have the same frequency of alleles

• When populations are living in different environments

• When populations can no longer interbreed

Multiple Choice

Which must occur first before a population can evolve?

• random mutations

• natural selection

• isolation (separation)

• non-random mating

Multiple Choice

Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Which type of isolation is this?

• Geographical isolation
• Mechanical isolation

• Behavioral isolation
• Temporal isolation

Multiple Choice

The flowers of pink tulips open in the morning, while the flowers of lavender tulips open in the early afternoon. The bees that pollinate these tulips cannot carry pollen back & forth between the two types of tulips because of their flowers being closed at different times of day.  What type of isolation is this?

• Behavioral isolation
• Mechanical isolation

• Geographic isolation

• Temporal isolation

Multiple Choice

When the Grand Canyon in Arizona formed, two populations of one squirrel species were separated by the giant canyon unable to ever meet again. What type of isolation is this?

• Temporal isolation

• Mechanical isolation

• Behavioral isolation

• Geographic isolation

Multiple Choice

When a population becomes divided by an event such as a new river forming and new species arise, this is a result of...

• Allopatric speciation
• Peripatric speciation

• Parapatric speciation
• Sympatric speciation

Multiple Choice

All of these are a result of sympatric speciation except...

• 2 species of penguins living on different continents; 1 in Antarctica, another in S. America

• 2 species of penguins having different diets; 1 eats krill the other eats squid

• 2 species of penguins hunting at different times of the day; 1 AM and the other PM

• 2 species of penguins having different mating calls

Multiple Choice

If 2 species shared the same niche (ie. ate the same food), what would happen?

• Competition would increase

• The species would change their food preferences to change their niche

• The species would merge into one
• Cooperation would increase

Multiple Select

This diagram is used to show...

• relationships among different species

• time of when different species diverged

• common ancestors

• relationship between parent and offspring

Multiple Select

What do we know about species D?

• diverged before C

• it is more related to C than to E

• it shares 1 common ancestor with C

• it has no relationship to M

• it's extinct

Fill in the Blanks

Hotspot

Where is the most recent common ancestor of G and H?

Hotspot

Where can you find ALL the common ancestors of G and H?

Fill in the Blanks

Multiple Choice

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)

Hotspot

Which trait(s) do species E and F share?

Hotspot

Which trait is the most primitive?

Hotspot

Which trait(s) does D have?

Hotspot

Which species is closely related to F?

Hotspot

Which species would have the most DIFFERENT DNA in comparison to G?

Multiple Choice

The more common ancestors two species have...

• the more unrelated they are.

• the less related they are.

• the more distantly related they are.

• the closer they are related.

Multiple Choice

In which of these would you find the most organisms?

• domain

• kingdom

• class

• order

Categorize

Options (4)

mammalia

animalia

americanus

carnivora

categorize the names to their taxonomic levels

class

kingdom

species

order

Multiple Select

You discover 2 species, Papilio appalachiensis and Papilio nireus. What taxonomic levels do they share?

• Order

• Family

• Genus

• Species

Multiple Select

You discover 2 species, Papilio appalachiensis and Papilio nireus. What does their scientific name tell us?

• they are the same species

• their DNA might be closely related

• there is no relationship at all

• they are separate species

• they belong in the same genus

Match

This is a species of jumping spider (awww so cute!) Identify the parts of its scientific name: Ancepitilobus howensis

• species

• genus

• family

howensis

Ancepitilobus

neither

• howensis

• Ancepitilobus

• neither

Multiple Choice

What is the best way to identify whether these 2 eagles are related?

• DNA evidence: check if their DNA is closely similar

• geographic evidence: check if they live near each other

• anatomy: check if they are shaped the same

• genus name: genus name is the same