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Ecology and Matter Science
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Ecology and Matter Science
Ecology and Matter Science
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1
Question
What is the zone of tolerance for an organism?
Page 1
Answer
The range of an abiotic factor that an organism can survive in.
2
Question
What defines atmospheric nitrogen according to the notes?
Page 1
Answer
Nitrogen in the atmosphere.
3
Question
What is mutualism between organisms?
Page 1
Answer
A relationship between two organisms in which both organisms benefit.
4
Question
How does a food chain function in an ecosystem?
Page 1
Answer
A path of energy through an ecosystem.
5
Question
What is a food web in relation to food chains?
Page 1
Answer
A system of interlocking food chains.
6
Question
How does a food chain differ from a food web?
Page 1
Answer
Food chain is a single path of energy; food web is interlocking chains.
7
Question
What determines the trophic level of an organism?
Page 1
Answer
The position of an organism in a food chain.
8
Question
What does biodiversity measure in an ecosystem?
Page 1
Answer
The variety of organisms in an ecosystem.
9
Question
What status describes a species at risk of extinction?
Page 1
Answer
Endangered.
10
Question
What defines an extinct species?
Page 1
Answer
Having no living members of the species; died out.
11
Question
How do endangered, threatened, and extinct species differ?
Page 1
Answer
Endangered at risk of extinct; threatened likely endangered soon; extinct has no living members.
12
Question
What describes non-biodegradable material?
Page 1
Answer
Does not break down in the environment.
13
Question
What is the purpose of a pesticide?
Page 1
Answer
A chemical used to kill insects or other organisms that feed on plants.
14
Question
What conservation status indicates near-term risk?
Page 1
Answer
Threatened: likely to become endangered in the near future.
15
Question
What process marks the start of plant growth from seeds?
Page 1
Answer
Germination: the process in which previously dormant seeds put out shoots for new growth.
16
Question
What measures fire intensity in ecosystems?
Page 2
Answer
How much heat is released from a fire front.
17
Question
What is the understorey in a forest ecosystem?
Page 2
Answer
Ground-level vegetation.
18
Question
What causes deforestation according to the definition?
Page 2
Answer
The removal of trees to make land available for other uses.
19
Question
What does endemic describe about a species?
Page 2
Answer
Only found in a certain location or community.
20
Question
How is fauna distinguished from flora?
Page 2
Answer
Fauna are animals; flora are plants and microorganisms.
21
Question
What process is urbanisation?
Page 2
Answer
The creation of urban areas such as cities.
22
Question
What fundamental particle composes all matter?
Page 2
Answer
Atom: a particle that makes up all matter; made up of protons, neutrons and electrons.
23
Question
What property makes a material brittle?
Page 2
Answer
Not able to be bent; will break or shatter if stressed.
24
Question
Which property allows drawing metal into wire?
Page 2
Answer
Ductile: can be drawn out into a wire.
25
Question
What is a pure element chemically?
Page 2
Answer
A pure substance made of one type of atom.
26
Question
What does malleable describe about materials?
Page 2
Answer
Able to be bent and shaped.
27
Question
How do metalloids differ from pure metals or non-metals?
Page 2
Answer
An element with properties of both metals and non-metals.
28
Question
What is a property of a substance?
Page 2
Answer
A characteristic of a substance that affects what it looks like and how it behaves.
29
Question
Define a chemical substance.
Page 2
Answer
Matter that has a fixed chemical make-up.
30
Question
What is an alloy in chemistry?
Page 3
Answer
A metal mixed with other metals or non-metals.