ORIGIN OF BIODIVERSITY Flashcards

(34 cards)

1
Q

a method by which biologists organize living things
into groups. It is also called

A

Scientific classification/taxonomy

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2
Q

Most diverse group

A

Insect

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3
Q

Taxon, taxa

A

1 2

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4
Q

most influential early classification system
was developed

A

Linnea system of classification

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5
Q

Linnean system of classification developed by

A

Carolus Linnaeus

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6
Q

a Swedish botanist who lived during the 1700s
is known as the “Father of Taxonomy”

A

Carolus Linnaeus

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7
Q

1735 published in Carolus Linnaeus

A

Systema naturae ( system of nature)

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8
Q

is the highest taxon in Linnaean taxonomy,
representing major divisions of organisms.
____ of organisms include the plant and
animal kingdoms.

A

Kingdom

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9
Q

is a division of a kingdom. in the animal
kingdom include chordates and arthropods

A

Phylum

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10
Q

is a division of a phylum.
____ in the chordate
phylum include mammals
and birds

A

Class

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11
Q

is a division of a class.
___in the mammal class
include rodents and
primates.

A

Order

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12
Q

is a division of an order.
_____in the primate order
include hominids (apes and
humans) and hylobatids
(gibbons).

A

Family

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13
Q

is a division of a family.
__ in the hominid family
include Homo (humans) and
Pan (chimpanzees

A

Genus

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14
Q

the lowest taxon in Linnaeus’ system.
____ in the Pan genus include Pan
troglodytes(common chimpanzees)
and Pan paniscus (pygmy
chimpanzees

A

Species

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15
Q

an English economist.
wrote a popular essay called “On Population”

A

Thomas malthus

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16
Q

human populations have the potential to grow
faster than the resources they need. When
populations get too big, disease and famine
occur. These calamities control population size
by killing off the weakest people.

A

On population

17
Q

theorized the Catastrophism which was based
on paleontological evidence in the Paris Basin.Cuvier was there when he observed something
peculiar about the fossil record.

A

Georges cuvier

18
Q

states that natural history has been
punctuated by catastrophic events that
altered that way life developed and rocks
were deposited.

A

Catastrophism

19
Q

theorized gradualism which profound
changes to the Earth

20
Q

states that the species appeared by the
gradual transformation of ancestral species
the population of a species is transformed
slowly and progressively into a new species
by the accumulation of micro-evolutionary
changes in the genetic heritage.

21
Q

states that when certain organs become
specially developed as a result of some
environmental need, then that state of
development is hereditary and can be passed
on to progeny.

A

Law of use and disuse

22
Q

Like Lamarck, Darwin assumed that
species can change over time. The fossils he
found helped convince him of that

23
Q

From Lyell, Darwin saw that Earth and its
life were very old. Thus, there had been
enough time for evolution to produce the
great diversity of life Darwin had observ

24
Q

From Malthus, Darwin knew that
populations could grow faster than their
resources. This “overproduction of
offspring” led to a “struggle for existence”
, in
Darwin’s word

25
From artificial selection, Darwin knew that some offspring have variations that occur by chance, and that can be inherited. In nature, offspring with certain variations might be more likely to survive the “struggle for existence” and reproduce. If so, they would pass their favorable variations to their offspring.
4
26
Darwin coined the term fitness to refer to an organism’s relative ability to survive and produce fertile offspring. Nature selects the variations that are most useful. Therefore, he called this type of selection natural selection.
5
27
Darwin knew artificial selection could change domestic species over time. He inferred that natural selection could also change species over time. In fact, he thought that if a species changed enough, it might evolve into a new species.
6
28
is an English biologist who proposed the theory of biological evolution by natural selection. Defined evolution as "descent with modification" Proposed that history of life forms from a branching tree
Charles Darwin
29
2 physical features of organism
Homologous and analogous
30
Two or more species share unique physical feature, complex bone structure Shared due to evolutionary history
Homologous
31
Not all physical features that look alike are marks of common ancestry. Some physical similarities are analogous, they evolved independently in different organism BC of similar environment. Convergent evolution
Analogous
32
Same genetic material Same genetic codes Same process of gene expression Same molecular building blocks
Molecular biology
33
geographic distribution of organisms on Earth follows patterns that are best explained by evolution, in combination with the movement of tectonic plates over geological time.
Biogeography
34
are the preserved remains of previously living organisms or their traces, dating from the distant past. not, alas, complete or unbroken: most organisms never fossilize, and even the organisms that do fossilize are rarely found by humans.
Fossil record