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Bio 20 > Ecology > Flashcards

Ecology Flashcards

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Biology 101 flashcards
1
Q

Define ecology

A

The study of interactions between organisms and their biotic and abiotic components

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2
Q

Define environment

A

Everything that affects an organism throughout its life as well as everything the organism affects

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3
Q

is BIOTIC living or non-alive? provide 5 examples:

A

Living.
animals, singled-cell organisms, competition, symbiotic relationship + potential

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4
Q

is ABIOTIC living or non-living? provide 3 examples:

A

Non-living.
temperature, disturbances, sunlight

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5
Q

what kind of interaction is Population? +1 example

A

A group of individuals of the same species living in a specific area at a specific time (forest of conifers)

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6
Q

what kind of interaction is individuals (species)? +1 example

A

Organisms that are able to breed with one another and produce fertile offspring (conifer trees)

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7
Q

what kind of interaction is community? +1 example

A

All of the individuals in all of the interacting populations at a given time (forest of conifers with rabbits living in it)

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8
Q

what is an Ecosystem?

A

A community of populations together with the abiotic factors that surround and affect it (forest of conifers with rabbits in the winter)

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9
Q

Give an example of Biotic-Biotic interactions?

A

SYMBIOSIS!
- moose eating grass

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10
Q

Give an example of Abiotic-Biotic interactions?

A

sunlight on plants

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11
Q

Give an example of Abiotic-abiotic interactions?

A

river eroding rocks

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12
Q

Define biome

A

An area classified according to the species that live in that location.

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13
Q

Define biosphere

A

all the ecosystems in the world and their interactions

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14
Q

Define: Extinct

A

a species that no longer exists

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15
Q

Define: Extirpated

A

a species no longer existing in the wild in one area, but it is found elsewhere

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16
Q

Define: Endangered

A

species facing possible extirpation or extinction

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17
Q

Define: threatened

A

a species likely to become endangered if something isn’t done

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18
Q

Define: special concern

A

a species that may become threatened or an endangered species

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19
Q

What is birth potential?

A

max #/birth

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20
Q

What is capacity for survival ?

A

reach reproductive age

21
Q

What is length of reproductive life?

A

age of sexual maturity and # of fertile years

22
Q

What is biotic potential?

A

is the maximum number of offspring that a species could produce if resources are unlimited

23
Q

What is carry capacity?

A

is the maximum number of individuals that can be supported by an ecosystem

24
Q

What is Intraspecific competition

A

same species

25
Q

What is interspecific competition

A

different species

26
Q

symbiotic relationship: define Commensalism (+, 0)

A

-One organism benefits, the other is unaffected
-Neither is harmed

27
Q

symbiotic relationship: define Mutualism (+,+)

A

-The relationship benefits both species
Bee and flower

28
Q

symbiotic relationship: define Parasitism (+,-)

A

-The relationship harms one organism and benefits the other
-Parasites don’t usually kill their hosts intentionally (would end their food supply)

29
Q

Competition for niches:
-if a new species enters an ecosystem, they’re called..and what do they cause?
-What are the 3 problems with these species?

A

-EXOTIC or INVASIVE SPECIES that causes a disturbance

-1. comp. between native species
-2. no natural predators
-3. may bring diseases (that native species aren’t immune to)

30
Q

What is density dependant?

A

factors brought on by pop. size that may limit further growth and/or reduce pop. #’s

31
Q

What is density independent?

A

any abiotic factors that will affect a population, regardless of its size

32
Q

When populations are small, density dependent factors DO or DO NOT limit growth?

A

DO NOT

33
Q

Density dependant examples (4)

A

Biotic factors:
Examples include: disease, parasites, predation, starvation

34
Q

Density Independent examples (5)

A

Natural disasters, including drought, floods, forest fires, etc.

35
Q

Levels of classification: what is DKPCOFGS

A

Danish King Phillip Came Over For Green Spinach

36
Q

What does the ‘D’ stand for in DKPCOFGS

A

DOMAIN

37
Q

What does the ‘K’ stand for in DKPCOFGS

A

Kingdom

38
Q

What does the ‘P’ stand for in DKPCOFGS

A

PHYLUM

39
Q

What does the ‘C’ stand for in DKPCOFGS

A

Class

40
Q

What does the ‘O’ stand for in DKPCOFGS

A

Order

41
Q

What does the ‘F’ stand for in DKPCOFGS

A

Family

42
Q

What does the ‘G’ stand for in DKPCOFGS

A

GENUS

43
Q

What does the ‘S’ stand for in DKPCOFGS

A

Species

44
Q

How are organisms named?

A

Binomial Nomenclature

45
Q

Genus name: appears: alone or never

A

may appear alone

46
Q

Species name: appears: alone or never

A

Never appears alone

47
Q

There are 3 domains: Bacteria, Archaea, and Eukarya
Based on…what?

A

The cellular composition of organisms

48
Q

Domain Eukarya: Kingdom of what (4 things)

A

Protista, Fungi, Plantae and Animalia

Bio 20 (5 decks)

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