Y8 Evolution

When an organism completely dies out, it is called.....

• Adaption
• Extinction
• Fossilization
• Mutation

Mistakes or changes that occur int he DNA sequence are called....

• adatations
• Darwinism
• mutations
• natural selection

Which beneficial variation would be most helpful in a desert environment?

• white fur
• claws for burrowing
• grean and black camouflage
• flippers

What is it called when an organism is best adapted to its environment, it will survive and reproduce more successfully than other organisms less adapted?

• cloning
• evolution of all species
• natural selection
• selective breeding

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution

Which best describes mutations?

• Always helpful
• Always harmful
• Can be helpful or harmful
• Always neutral

Genetic differences between organisms of the same species

• Variation
• Adaptation
• Behavior
• Environment

Why is biodiversity so important?

• Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
• Because it’s better to have only one variation of each species.
• Because it better to only have a few species on Earth.
• Honestly, I have no idea what biodiversity is!