Natural Selection

Bird's beaks evolve mainly due to the type of ___________________ available.

• food
• water
• shrubs
• mates

If an organism can't adapt fast enough, this might happen.

• hibernate
• stay the same
• live longer
• become extinct

Darwin said that within a species there will be _________________________

• nothing different
• variation/differences

Organisms with differences/variations that are helpful will ______________________

• live longer
• become extinct
• show no change

What can happen to a species over time if some of the organisms have an advantage?

• The population will decrease
• The population will become extinct
• The population will slowly increase

When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called

• evolution by natural selection
• artificial selection
• inbreeding
• outbreeding

The English naturalist that developed the theory of how evolution works.

• Charles Darwin
• Charles M. Schulz
• Charles Dickens
• Charles Norris

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.

The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution