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Biology Year 11 > Classification and Ecosystems Test > Flashcards

Classification and Ecosystems Test Flashcards

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1
Q

Disease

A

Organism to cause body to not function in the correct manner

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2
Q

Parasitism

A

Two organisms in relationship where one is benefits and other is harmed

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3
Q

Commensalism

A

Two organisms in relationship where one is benefited and on is unaffected

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4
Q

Predation

A

Form of symbiotic relationship between two organisms e.g seal and killer whale. Predator hunts prey for a source of food

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5
Q

Mutualism

A

Two organisms in relationship where each Individual benefits e.g bee and flower

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6
Q

Competition

A

(Interspecific)
(Intraspecific)
Two or more organisms fight over particular resources

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7
Q

Decomposer

A

Breakdown dead organic matter into inorganic materials, which is recycled back into the soil
e.g fungi and bacteria

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8
Q

Producers

A

Use light energy to produce chemical energy e.g glucose

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9
Q

Herbivores

A

Heterotrophic

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10
Q

Carnivore

A

Heterotrophic

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11
Q

Food Chains show…

A

Flow of energy

Ultimate source of energy is the SUN

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12
Q

Abiotic Factors

A

Non living things that effect an ecosystem

e.g temperature, water, pressure

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13
Q

Viscosity

A

Ability of the organism to move around

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14
Q

Pressure

A

Force exerted on a body by its medium

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15
Q

Temperature

A

Results in active or denaturing

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16
Q

Genetic Diversity

A

Range of different genes in the group and size of a gene pool

17
Q

Genetic Diversity Importance

A

Cause variation within a species and important in process of evolution

18
Q

Species Diversity

A

The variety of species in an area

19
Q

Species

A

A group of organisms that look alike, interbreed and produce fertile offspring
Within a species there is variation
The genes pool of the population contains a variety of alleles for different genes

20
Q

Ecosystem Biodiversity

A

Refers to the variety of ecosystems on Earth. Also considers the range of communities in each area.

21
Q

Ecosystem

A

The interaction of living things with their environment and with over living things in an area functioning together to make an ecological unit

22
Q

Levels of Classification

A 
Kingdom 
Phylum
Class
Order
Family
Genus 
Species
23
Q

Binomial Naming System

A
  1. Genus name comes first with capital letter

2. Species name follows with lower case

24
Q

Need For Classification

A

Shows trends in development
Show evolution fro simple to complex structures
Assists in identification of unknown organism

25
Q

Selection Criteria

A
  • structure: physical characteristics are used to group organisms e.g limbs, backbone or fur
  • reproduction: ability to reproduce is fundamental to all life
  • genetic and biochemical characteristics: the sequence of molecules in DNA and proteins vary greatly. Similar sequence
    = closer related
26
Q

Why is biodiversity important?

A

Boosts ecosystem productivity and each species has a role to play

26
Q

Biotic Factors

A

Living things such as animals and plants that interact with each other.

27
Q

Phylogenetic Trees

A

First organism on left is the oldest

Closely related organisms share the same node

28
Q

Why are food chains short?

A

Energy is lost moving up trophic levels
10% of energy is passed on each trophic level
Energy is lost during production of heat via Respiration
Other processes include movement

29
Q

Chordata

A 
Bilateral symmetry 
2 openings 
Cells in three layers 
True body cavity 
Hollow dorsal nervous systems
e.g fish, amphibians and reptiles
30
Q

Arthropoda

A 
Two openings
Cells in three layers 
True body cavity 
Hard exoskeleton
Jointed limbs 
Segmented body 
e.g insects, spiders and crayfish
31
Q

Archea

A 
Prokaryotes
Unicellular 
No nucleus 
Cell wall 
Both
32
Q

Bacteria

A 
Prokaryote
Unicellular 
No nucleus 
Cell wall
Both
33
Q

Plantae

A 
Eukaryote
Multicellular 
Nucleus 
Cell wall
Autotroph
34
Q

Protista

A 
Eukaryote 
Unicellular 
Nucleus 
Cell Wall
Both
35
Q

Fungi

A 
Eukaryote 
Multicellular 
Nucleus 
Cell wall
Heterotroph
36
Q

Animalia

A 
Eukaryote
Multicellular 
Nucleus 
No cell wall
Heterotroph

Biology Year 11 (4 decks)

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