Question 1

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

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Question 2

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

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Question 3

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

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Question 4

Distinguish between an organism and a species.

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Question 5

Define the term dichotomous key.

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Question 6

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

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Question 7

Define the term species.

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Question 8

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

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Question 9

Define the term population.

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Question 10

State two advantages of using dichotomous keys for organism identification.

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Question 11

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

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Question 12

Outline three limitations of using dichotomous keys for identifying organisms.

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Question 13

Describe biotic and abiotic factors with reference to a named ecosystem.

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Question 14

What is a dichotomous key used for?

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Question 15

Which statement best defines a species?

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Question 16

What is the main purpose of scientific classification in biology?

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Question 17

Which of the following is an abiotic factor in an ecosystem?

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Question 18

What is the primary method scientists use to identify organisms in the field?

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Question 19

Which of the following describes a population in ecology?

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Question 20

Outline why classification systems may change over time.

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Topic 2.1: Species, Populations Questions

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