MacroEvolution | VOCAB Flashcards

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1
Q

Macroevolution

A

Evolution at a larger scale across many populations

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2
Q

Microevolution

A

Small changes across a population

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3
Q

Speciation

A

Process for creating new species

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4
Q

Species

A

A group of living organisms consisting of similar individuals capable of breeding/exchanging genes

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5
Q

Species Concept

A

Used to define what a species is

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6
Q

Morphological Concept

A

Characterizes a species based by body shape and other structural features

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7
Q

Biological Concept

A

Group of organisms can potentially interbreed, or mate, with one another to produce viable fertile offspring

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8
Q

Reproductive Isolation

A

Prevents members of different species from producing offspring

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9
Q

Prezygotic Isolation Mechanism

A

Prevents mating and occurs before copulation

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10
Q

Ecological Isolation

A

Species that occur in the same area, but occupy different habitats and rarely interact with each other

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11
Q

Temporal Isolation

A

Species living in the same area that mate at different times of the day/year

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12
Q

Behavioral Isolation

A

When signals of one species are not recognized by another

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13
Q

Mechanical Isolation

A

Different in physical structures make mating impossible

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14
Q

Gamete Isolation

A

When indiviuals of different species mate, but fertilization does not occur because of incompatability between the sperm and egg

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15
Q

Postzygotic Isolation Mechanism

A

Prevents hyrbid offspring from developing/breeding

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16
Q

Hyrbid Inviability

A

Reduces a hybrids capacity to mature into a fit, healthy adult. Cannot survivie to maturity (miscarriage)

17
Q

Hybrid Sterility

A

Hybrids are sterile

18
Q

Hybrid Breakdown

A

The second generation of hybrids reduce survival/frttility

19
Q

Speciation

A

Formation of a new species

20
Q

Allpatric Speciation (Variance)

A

When one population is geographically isolated form other populations

21
Q

Symatric Speciation

A

A population develops into 2 or more reproduvily isolated groups without geographic isolation

22
Q

Adaptive Radiation

A

When many species evolve from a single common ancestor after they are exposed to different enviroments & resoures

23
Q

Population

A

Any group of individuals of the same species living together in the same area