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Unit B > B1 Content > Flashcards

B1 Content Flashcards

1
Q

What is ecology?

A

The study of ecosystems, communities,populations, and the abiotic and biotic factors that influence each other

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2
Q

Biotic

A

Living things (humans and all organisms)

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3
Q

Abiotic

A

Non-living things (water,soil,sun,air)

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4
Q

Population

A

A group of individuals from the same species that can reproduce

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5
Q

Community

A

Interaction of different populations

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6
Q

Ecosystem

A

A community and it’s physical and chemical environment

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7
Q

Ecotone

A

Transition area between ecosystems where organisms from both ecosystems interact

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8
Q

Ecological niche

A

An organism’s role in a ecosystem
Ex:
place in food web
Habitat
Breeding

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9
Q

Terrestrial niche

A

Helps us understand how organisms in an ecosystem interact with each other

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10
Q

Aquatic niche example

A

Great white shark

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11
Q

What are New (Exotic species)
And how do they arrive

A

They are new species that can cause a disturbance
They arrive from:
- Natural movement
- seed dispersal
- new routes
- human introduction

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12
Q

Biome

A

A large geographical region with a specific climate and the organisms that are adapted to that climate

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13
Q

What are the 4 major terrestrial biomes in Canada

A

1.Tundra
2.Tiaga
3.Temperature Decidous forest
4.Grassland

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14
Q

Two major aquatic biomes in Canada

A

Freshwater(lake,river,pond ecosystem)
Marine(ocean system)

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15
Q

Abiotic factors-terrestrial

A
  • depth of soil
  • soil nutrients
  • light
  • temperature
  • water availability
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16
Q

Tundra

A

Northern regions have a layer of permafrost below the soil surface that never melts

17
Q

What are the 4 soil layers

A

-Litter
- Topsoil
- Subsoil
- bedrock

18
Q

Litter

A
  • upper layer
  • made up of small rocks and decaying plant and animal matter
19
Q

Top soil

A

Beneath litter
Made up of small rocks and decaying plants and animal matter

20
Q

Subsoil

A

Beneath topsoil
Made up of rock particles and small amounts of organic matter

21
Q

Bedrock

A

Layer of rock that marks end of soil

22
Q

Water table

A

Boundary between groundwater and soil that is unsaturated with water

23
Q

Biotic limiting factors

A

Competition for resources
- Interspecific
- Infraspecific
Preditation
Parasites/disease

24
Q

Interspecific

A

Between 2 different species

25
Q

Intraspecific

A

Between the same species

26
Q

Abiotic limiting factors

A

Water
Temperature
Sunlight
Oxygen

27
Q

Taxonomy system

A

1: domain
2: kingdom
3: phylum
4: class
5: order
6: family
7: genus
8: species

28
Q

Genetic diversity

A

Amount of variation in the inherited traits between individuals of the same species

29
Q

Species diversity

A

Number of different species

30
Q

Taxonomy

A

Classification system that infers relationships among organisms

31
Q

The 3 domains

A

Eubacteria
Eukaryota
Archaebacteria

32
Q

The 6 kingdoms of life

A

Animalia
Fungi
Eubacteria
Plantae
Protista
Archaebacteria

33
Q

Archaea

A

Single-celled prokaryotic organisms that live in extreme environments

34
Q

Bacteria

A

Single celled prokaryotic organisms that live in a wide range of habitats

35
Q

Protista

A

Consists of both single and multi-celled eukaryotic organisms

36
Q

Fungi

A

Single and multicelled eukaryotes that secrete enzymes to digest food

37
Q

Plantae

A

Eukaryotic multi-celled organisms that use photosynthesis

38
Q

Animalia

A

Eukaryotic multi-celled organisms that are heterotrophs

39
Q

Phylogeny- history of evolution

A

Shows the relationship between organisms
Shows the evolution of animals

Unit B (3 decks)

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