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Ecology > ecology > Flashcards

ecology Flashcards

1
Q

Ocean zones

A

Neritic, oceanic, pelagic, benthic, abyssal

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2
Q

Pelagic zone subdivisions

A

Photic and aphotic

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3
Q

Lake zones

A

littoral, limnetic, benthic, pelagic

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4
Q

Types of organisms in relation to temp

A

Homeotherms, poikilotherms, endotherms, and ectotherms

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5
Q

Homeotherm

A

Maintain constant temp, birds and mammals, feathers long limbs and ears to increase SA for evaporative cooling

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6
Q

Poikilotherms

A

Body temp fluctuates, reptiles and amphibian

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7
Q

Endotherm

A

Internal heat via metabolic processes, warm blooded

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8
Q

Ectotherms

A

External sources of E to regulate temp, cold blooded

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9
Q

Hibernation

A

State of inactivity

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10
Q

What characterizes hibernation

A

Bradycardia, slow metabolic rate

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11
Q

Torpor

A

hibernation for only portion of day

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12
Q

Aestivation

A

Summer hibernationP

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13
Q

Purpose of aestivation

A

Prevents desiccation

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14
Q

Abiotic factors

A

Temp, water, salinity

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15
Q

Xerophytes

A

plants that can live in dry environments

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16
Q

Xerophyte adaptation

A

Spines, fleshy stems, thich, shiny epidermis, sparse/sunken stomata, external root system

17
Q

Mesophytes

A

Moderate moisture

18
Q

Hydrophytes

A

Plants in water

19
Q

Hydrophyte adaptations

A

Aerenchyma for bouyancy, pneumatophores

20
Q

Pneumatophores

A

Oxygen carrying roots

21
Q

Cryptobiosis

A

Severe environmental conditions result in state of reduced metabolism

22
Q

Anhydrobiosis

A

Life w out water

23
Q

Function of trehalose production

A

Desiccation prevention, alters plasma membrane

24
Q

Halophyte

A

Plant in saline conditions

25
Q

Halophile

A

Extreme high salinity organism

26
Q

Euryhaline

A

Adapted to wide range of salinity

27
Q

Stenohaline

A

Narrow range of salinity

Ecology (5 decks)

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