How new species form

Explain how geographic isolation and natural selection lead to reproductive isolation and new species, using Australian examples.

⏱ 18 min❓ 8 questions

What you'll be able to do

✔I can define a species using the ability to produce fertile offspring
✔I can sequence the stages of allopatric speciation
✔I can apply speciation to Australian examples and identify reproductive isolating mechanisms

How this works

1Read the short explanations first — they teach you what you need before each question.
2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

8 questions and 1 quick teaching card, including:

↕️Put in order — Use the up and down arrows to sort the steps.
🔢Number answer — Work out the answer and type the number.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Curriculum: AC9S10U02