Semester Exam Review

If a plant had the genotype SsAA, what would be its phenotype? 

• smooth with terminal flowers
• smooth with axial flowers
• short with axial flowers
• smooth with plastic flowers

Birds such as cardinals, eagles, and ducks have differently shaped beaks due to

• random changes in beak structure.
• adaptations to different environments and feeding habits over a long period of time.
• differences acquired during their lifetimes
• inheritance of acquired characteristics.

If a there was no water on the Galapagos Islands for several years, and the only food left was really hard seeds, the birds' beaks would change because...

• small birds will exercise their beak until it is large
• small birds will mutate their small beaks
• small birds will start eating more, and grow bigger beaks
• smaller birds will die out leaving only the big beaked birds to reproduce

Biological evolution by natural selection is when genes ____, individuals ____, and populations ____.

• evolve; mutate; are selected
• evolve; are selected; mutate
• mutate; are selected; evolve
• mutate; evolve; are selected

Which graph will lead to two new species?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

The shift from light to dark moths is a form of which type of selection?

• natural
• stabilizing
• disruptive
• directional

The dark form of the peppered moth...

• has a selective advantage in polluted areas
• has a selective advantage in unpolluted areas
• is more easily spotted in polluted areas
• is the dominant form of the gene

Define fitness.

• The person who could survive a zombie apocalypse.
• The person with enough money to buy anything.
• The person with the most offspring.
• The person who is the strongest man on earth.

Why doesn't the theory of inheritance of acquired characteristics work?

• You can't pass down genes to your kids
• You can't pass down family heirlooms to your kids
• You can't pass down adaptations you have achieved to your kids

What would be the genotype of a green plant with smooth seeds? 

• YYss
• GgSs
• GGss
• ggss