2.6 Flashcards

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1
Q

abiotic

A

Physical non living factors of an environment e.g.. temperature

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2
Q

adaptation

A

The action or processes of adapting (changing) to suit a changing or changed environment.

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3
Q

Age structure

A

Features of the age of the population.

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4
Q

Biotic

A

Living factors of an environment e.g.. moss

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5
Q

Carnivore

A

An animal or plant (particularly insect- and invertebrate-eating plants) that requires a staple diet consisting mainly or exclusively of animal tissue through predation or scavenging.

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6
Q

community

A

An ecological unit composed of a group of organisms or a population of different species occupying a particular area, usually interacting with each other and their environment.

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7
Q

competition

A

A symbiotic relationship between or among living things for resources, such as food, space, shelter, mate, ecological status, etc.

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8
Q

consumer

A

An organism that generally obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food from inorganic sources; a heterotroph.

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9
Q

Decomposer

A

An organism whose ecological function involves the recycling of nutrients by performing the natural process of decomposition as it feeds on dead or decaying organisms.

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10
Q

Density

A

compactness

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11
Q

Distribution

A

The specific location or arrangement of continuing or successive objects or events in space or time.

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12
Q

Ecosystem

A

A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit.

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13
Q

habitat

A

Place where an organism or a biological population normally lives or occurs.

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14
Q

Herbivore

A

.Animals that consume plant material as a source of obtaining [[energy.

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15
Q

Kite Diagram

A

Kite diagrams: help to illustrate zonation by showing how the amount of different vegetation types and amount of bare ground change as one moves along the transect.

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16
Q

Limiting factor

A

A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem.

17
Q

Mark and recapture

A

system used to estimate the population of an animal

18
Q

Microclimate

A

The climate of a very small or restricted area.

19
Q

Mortality

A

The death rate. The ratio of the total number of deaths to the total population. The ratio of deaths in an area to the population of that area; expressed per 1000 per year.

20
Q

Mutualism

A

Mutualism is the way two organisms biologically interact where each individual derives a fitness benefit

21
Q

Natality

A

The birthrate, which is the ratio of total live births to total population in a particular area over a specified period of time; expressed as childbirths per 1000 people (or population) per year

22
Q

Niche

A

(1) The specific area where an organism inhabits.
(2) The role or function of an organism or species in an ecosystem.
(3) The interrelationship of a species with all the biotic and abiotic factors affecting it.

23
Q

Omnivore

A

Omnivore: An animal that feeds on both plants and animals to survive. Humans are an example

24
Q

Parasitism

A

A form of symbiosis in which one organism (called parasite) benefits at the expense of another organism usually of different species (called host). The association may also lead to the injury of the host.

25
Q

Population

A

A group of organisms of one species that interbreed and live in the same place at the same time (e.g. deer population).

26
Q

predation

A

A form of symbiotic relationship between two organisms of unlike species in which one of them acts as predator that captures and feeds on the other organism that serves as the prey.

27
Q

Producer

A

The first trophic level in a food chain in which it serves as a food source for consumers or for higher trophic levels.

28
Q

Quadrat

A

A square or rectangular plot of land used to mark off at random a physical area to isolate a sample and determine the percentage of vegetation and animals occurring within the marked area.

29
Q

Scavenger

A

An animal (such as a vulture or coyote) that eats carcasses abandoned by predators,

30
Q

Species

A

(2) An individual belonging to a group of organisms (or the entire group itself) having common characteristics

31
Q

Stratification

A

The use of chemical and mechanical systems to break dormancy and increase germination.

32
Q

succession

A
  1. (ecology) The progressive replacement of one dominant type of species or community by another in an ecosystem until a stable climax community is established.
33
Q

supplementary

A

Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole.

34
Q

Tolerance

A
  1. The ability to endure unusually large doses of a drug or toxin.
35
Q

Trophic Level

A

A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode.

36
Q

Zonation

A

(ecology) The categorization of biomes into zones based on their distribution or arrangement in a habitat as determined by environmental factors, e.g. altitude, latitude, temperature, other biotic factors, etc.