Modes of Selection Review

What type of selection is this?

• Stabilizing

• Disruptive

• Directional

What type of selection is this?

• Stabilizing

• Disruptive

• Directional

What type of selection is this?

• Stabilizing

• Disruptive

• Directional

Which part of the population has LOWER fitness?

• Low end (left side)

• High end (right side)

• Average (middle)

• Both Low and High end

Which part of the population has LOWER fitness?

• Low end (left side)

• High end (right side)

• Average (middle)

• Low end and High end

Which part of the population has HIGHER fitness?

• Low end (left side)

• High end (right side)

• Average (middle)

• Low end and High end

Which part of the population has HIGHER fitness?

• Low end (left side)

• High end (right side)

• Average (middle)

• Both Low and High end

Birds with a small beak cannot crack open seeds...What will happen to this population?

• Birds with small beaks will die off.

• Birds with big beaks will die off.

• Birds with medium beaks will die off.

Birds with a small beak cannot crack open seeds... What will happen to this population?

• The population's average beak size will decrease.

• The population's average beak size will increase.

• The population's average beak size will remain the same.

Birds with a small beak cannot crack open seeds... What kid of selection will occur?

• Stabilizing

• Directional

• Disruptive