Expert Maths & Science Tutoring

Q1. Knowledge Recall (1 mark)

Define the term "extinction".

Q2. Knowledge Recall (2 marks)

Name two factors that can cause extinction.

Q3. Application (2 marks)

Explain how the extinction of one species can lead to the extinction of other species.

Q4. Knowledge Recall (1 mark)

State the name of the mass extinction event that occurred 65 million years ago.

Q5. Application (3 marks)

The dodo bird became extinct in the 17th century. Explain the possible reasons for its extinction.

Q6. Data Analysis (4 marks)

The graph below shows the number of species that have become extinct over time.

[GRAPH INSERTED HERE]

a) Describe the general trend in the data. (2 marks)

b) Suggest two possible reasons for the decrease in extinction rates over the last 100 years. (2 marks)

Q7. Knowledge Recall (1 mark)

Name one threatened species that is currently being protected by conservation efforts.

Q8. Application (2 marks)

Explain how protecting endangered species can help to maintain biodiversity.

Q9. Knowledge Recall (1 mark)

State the main difference between background extinction and mass extinction.

Q10. Calculation (3 marks)

A species has a population of 1000 individuals. If the extinction rate is 1%, calculate the predicted number of individuals that will become extinct over the next 100 years.