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- 1. Multiple Choice
New traits usually occur due to:
Random genetic mutations
An organism adapting
Effects from the environment
- 2. Multiple Choice
Check all of the options below that are SELECTION FACTORS, which determine whether a trait helps or hurts an organism. (choose more than one)
Obtaining food
Surviving climate changes
Escaping predators
Moving fast
- 3. Multiple Choice
If a new trait DOES NOT help an organism survive, what may happen to it?
It dies and its DNA is not passed on
It survives and its DNA is passed on
It changes its traits to adapt and survive
- 4. Multiple Choice
If a new trait DOES help an organism survive, what may happen to it?
It dies and its DNA is not passed on
It survives and its DNA is passed on
It changes its traits to adapt and survive
- 5. Multiple Choice
What happens to new traits that HELP organisms survive over time?
They become MORE COMMON
They become LESS COMMON
They are EQUALLY COMMON
- 6. Multiple Choice
What happened to the peppered moth population after the Industrial Revolution?
There were MORE LIGHT moths because the bird couldn't see them on the DARK TREES
There were MORE DARK moths because the bird couldn't see them on the DARK TREES
There were MORE DARK moths because the bird couldn't see them on the LIGHT TREES
- 7. Multiple Choice
Which traits were selected for in whale ancestors?
Traits that helped them walk on land
Traits that helped them move in water
Traits that helped them give birth
- 8. Multiple Choice
Which trait was selected for in therapod dinosaurs which led to modern day birds?
Feathers - for warmth or mating
Feathers - for flying
A wish bone - for flying
- 9. Multiple Choice
Which trait was selected for in Tiktaalik which led to the evolution of tetrapods?
Fins so it could swim in water
Four limbs so it could walk on land
Lungs so it could breathe air
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