Question 1

List four abiotic factors that can affect the distribution of organisms in an ecosystem.

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Question 2

Distinguish between an organism and a species.

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Question 3

Outline the steps involved in using a dichotomous key to identify an organism.

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Question 4

Distinguish between abiotic and biotic factors, giving one example of each.

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Question 5

Define the term sustainability in the context of environmental systems.

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Question 6

The graph shows changes in two populations (A and B) over time in an ecosystem.

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Question 7

Define the term resilience in the context of environmental systems.

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Question 8

State the rules for writing a binomial name and provide an example.

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Question 9

State four observable physical features that could be used to identify plant species in the field.

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Question 10

Distinguish between a population and a species, using wolves as an example.

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Question 11

Define the term open system.

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Question 12

The graph shows population changes in snowshoe hares and lynx over a 16-year period.

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Question 13

Define the term limiting factor.

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Question 14

Define the term carrying capacity.

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Question 15

Define the term community in environmental systems and societies.

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Question 16

Define the term ecosystem and distinguish between biotic and abiotic components, giving examples of each.

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Question 17

State one characteristic of a keystone species in an ecosystem.

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Question 18

Define the term species.

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Question 19

Define the term ecosystem in environmental systems and societies.

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Question 20

Define the term dichotomous key.

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Topic 2.1: Species, Populations Questions

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