Speciation Flashcards

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1
Q

Group of populations whose members have the potential to interbreed in nature and produce viable fertile offspring, but do not produce viable offspring with members of other groups.

A

Species

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2
Q

These are group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

A

Species

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3
Q

It is how a new kind of plant or animal species is created.

A

Speciation

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4
Q

It occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

A

Speciation

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5
Q

The gene flow is interrupted when a population is divided into geographically isolated subpopulations.

A

Allopatric Speciation

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6
Q

It occurs when a species separates into two separate groups which are isolated from one another.

A

Allopatric Speciation

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7
Q

A _______ such as a mountain range or a waterway, makes it impossible for them to breed with one another.

A

physical barrier

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8
Q

TRUE OR FALSE?

In Allopatric Speciation, each species develops differently based on the demands of their unique habitat or the genetic characteristics of the group that are passed onto offspring.

A

TRUE

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9
Q

It occurs in populations that live in the same geographic area.

A

Sympatric Speciation

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10
Q

It occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another.

A

Sympatric Speciation

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11
Q

TRUE OR FALSE?

A new species, perhaps based on a different food source or characteristic, seems to develop gradually.

A

FALSE. In Sympatric Speciation, a new species may develop spontaneously.

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12
Q

TRUE OR FALSE?

The theory is that some individuals become dependent on certain aspects of an environment—such as shelter or food sources—while others do not.

A

TRUE (Sympatric Speciation)

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13
Q

This happens when gene flow is diminished by Polyploidy, Habitat differentiation, Sexual selection.

A

Sympatric Speciation

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14
Q

a species is spread out over a large geographic area

A

Parapatric Speciation

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15
Q

TRUE OR FALSE?

Although it is possible for any member of the species to mate with another member, individuals only mate with those in their own geographic region.

A

TRUE (Parapatric Speciation)

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16
Q

When small groups of individuals break off from the larger group and form a new species.

A

Peripatric Speciation

17
Q

TRUE OR FALSE?

The main difference between allopatric speciation and peripatric speciation is that in peripatric speciation, one group is much smaller than the other.

A

TRUE