. Flashcards

1
Q

Classification

A
Kingdom (Animalia)
Phylum (Chordata)
Class (Mammalia)
Order (Primates)
Family (Hominidae)
Genus (Homo)
Species  (sapiens)
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2
Q

Taxonomy

A

grouping organisms based on some trait or characteristic.

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3
Q

Linnaeus

A

Swedish Botanist had a system that used genus and species to name an organism. Binomial Nomenclature (Homo sapiens) Noun adjective

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4
Q

Dichotomous key

A

identifies organisms based on a series of choices between alternative characteristics.

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5
Q

Organism

A

Individual

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6
Q

Population

A

group of organisms of the same species living together (same area)

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7
Q

Communities

A

Populations of different species that coexist

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8
Q

Ecosystem

A

marine, desert, forest, tundra, etc. More complex than communities. Includes non-living things as well.

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9
Q

Biosphere

A

layer of air, land and water that envelopes the Earth.

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10
Q

Community Interactions

A
  • Niche
  • Predation
  • Competition
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11
Q

Niche

A

The role an organism has in nature (in its habitat)

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12
Q

Predation

A

Predators obtain energy and nutrients by eating Prey

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13
Q

Competition

A

two species going after the same resource

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14
Q

Symbiotic relationship

A

Two different species interact and sometimes totally rely on each other.

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15
Q

Parasitism

A

Get energy and nutrients from their host but good ones do not kill you.

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16
Q

Mutualism

A

Interaction where both species benefit.

17
Q

Commensalism

A

One benefits and the other is neither harmed nor benefits.

18
Q

Limiting resource

A

the resource in a population that limits how large the population can become.

19
Q

Carrying capacity

A

The size of a population that a habitat can support.

20
Q

Density-Independent

A

limiting factor that does not depend on population size. (Flood, fire, hail)

21
Q

Density dependent

A

Limiting factors that depend on population size. (Disease, parasites, predators,)

22
Q

Life without the sun

A

1977 Chemosynthetic bacteria found

Example hydrothermal vent