Systematics Based On Evolutionary Relationships ( Cladistics And Phylogeny ) Flashcards

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1
Q

Types of Diversity

A

Genetic Diversity
Species Diversity
Ecosystem Diversity

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2
Q

Diversity of genes within a species

A

Genetic diversity

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3
Q

Diversity among species in an ecosystem

A

Species diversity

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4
Q

Diversity of a habitat in a given unit area

A

Ecosystem diversity

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5
Q

The most precise and specific measure
of biodiversity is

A

Genetic Diversity or genetic variation within a species

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6
Q

What do genetic diversity/ genetic variation measure of diversity do?

A

looks at differences
among individuals within a population

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7
Q

The term biodiversity Usually refers
to

A

Species diversity

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8
Q

At the broadest most encompassing level.
we have

A

Ecosystem diversity

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9
Q

What does biologists look at the many types of

A

Functional units formed by living
communities interacting with their
environments.

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10
Q

Diversity may be measured at different scales. These are
three indices used by ecologists:

A

Alpha diversity
Beta diversity
Gamma diversity

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11
Q

Refers to dliversity within a particular
area, community, or ecosystem, and is measured by
counting the number of taxa within the ecosystem
(Usually species)

A

Alpha diversity

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12
Q

Is species diversity between ecosystems
this involves comparing the number of taxa that are
unique to each of the ecosystems

A

Beta diversity

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13
Q

Is a measurement of the overall
diversity for different ecosystems within a region,

A

Gamma diversity

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14
Q

Systematists have
developed different approaches to show
relationships among organisms. The most
commonly used is

A

Cladistics

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15
Q

The relationship among organisms are shown in a

A

Cladogram

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16
Q

Cladogram is based on

A

Phylogeny

17
Q

Phylogeny describes ________

A

Evolutionary Relationships

18
Q

Cladistics was developed in the
1950s by a scientist named

A

Willi Hennig

19
Q

One way of classifying organisms that shows
phylogeny is by using the

A

Clade

20
Q

It is a
group of organisms that includes an ancestor and
all of its descendants

A

Clade

21
Q

A diagram used to reflect evolutionary
relationships among_ organisms or groups
of organisms

A

Phylogenetic tree

22
Q

used to see ancestral connections.

A

Family trees