Jess Watts
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A level biology on biodiversity

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Jess Watts
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Biodiversity - AS Level Biology - Edexcel Topic 4

Question 1 of 7

1

What is the main way we see if two organisms are the same species?

Select one of the following:

  • if they can breed together

  • if they can produce fertile offspring

  • if they look the same

  • if they live in the same habitat

Explanation

Question 2 of 7

3

Select from the dropdown lists to complete the text.

A habitat can thought of as literally where an organism ( lives, breeds ).

A population is the number of interbreeding individuals of the ( same species, same phenotype ) found in an area

A community is the number of ( various populations, all the animals ) in a habitat.

Explanation

Question 3 of 7

1

An 'ecological niche' is how an organism gets what they need out of their environment; it means that two organisms can occupy the same habitat and not be in competition.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 7

2

Select the two statements that best define 'adapted' organisms

Select one or more of the following:

  • being able to exploit their own environmental niches

  • being able to find food quickly

  • specific behavioural, physiological, or anatomical changes to suit their needs/environment

  • how organisms have evolved to suit their surroundings

Explanation

Question 5 of 7

5

Fill the blank spaces to complete the text.

Behavioural adaptations are that help organisms to .

Anatomical adaptations are the we see when we an organism.

Physiological adaptations relate to the of organisms that help them survive and/or reproduce.

Explanation

Question 6 of 7

1

Co-adaption is how a organism adapts to its environment when it changes, for example when seasons change

Select one of the following:

  • True
  • False

Explanation

Question 7 of 7

1

What's the definition of the term endemic?

Select one of the following:

  • how a species is adapted to it's role in the ecosysytem

  • a species who has more advantageous alleles

  • a species that is only naturally found in one place

Explanation