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changes over time
Year 10 Science Biology Unit

“Changes Over Time”

Conditions
Key Dates
Time Allowed: class time and 5 weeks own time

Task Given
Week Beginning 17th February
Plagiarism: refer to school policy
Submit choice of species
21st February
Harvard Referencing: refer to sources

No late submissions will be accepted without an approved extension – speak to teacher before 17 March
Submit work completed to date
Midnight 2nd March

Submit Final Assignment
Midnight 21st March

Criteria Assessed: Understanding Biology and Research Skills

Assessment Task: Research Task

Context

Populations of species have changed over time, some relatively quickly and some slowly but all in response to particular selection pressures according to the evidence available to date.
You are a scientific journalist and your editor has asked you to prepare an article explaining how a particular (you choose) species has changed over time. The editor requests that you explain the process of inheritance and link the changes observed over a number of years to the Theory of Natural Selection. You are also required to hypothesize on the potential changes of the population of your chosen species in the future justified on your research or findings.

The Task

1. You are to choose a species from the following list:
Cheetah
Elephant Seal
MRSA
Red Bellied Black Snake
Cane Toad
A GM Crop such as domestic wheat
A genetic human disease for example Huntingdon’s Chorea or Sickle Cell Anemia that illustrates higher prevalence in particular regions of the world
You can select another species that is not listed however your choice MUST be approved by your teacher before you begin the task.

2. Discuss your choice with your teacher before 21st February

3. Start your research…… ask your teacher for guidance on how to do this. Ensure you purchase a small notebook or prepare an electronic version to collect all your research articles. This will formulate

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