ET Unit 6 Review Day 2 3/12/24

Maria Concepcion Soto settled in the northern area of Venezuela. She suffered from a rare genetic disorder called Huntington’s Disease. As a result, the now 20,000 individuals who live there also have a high risk of Huntington’s Disease.

• Gene Flow

• Genetic Drift

Select the best answer based on the image.

• Gene Flow

• Genetic Drift

One of the original Amish settlers who founded a new area for them had a rare, genetic disorder which causes short limbs and extra digits. Now, many within the population show this trait.

• Gene Flow

• Genetic Drift

Robins typically lay fours eggs. If more then four eggs are produced then the baby chicks are malnourished while smaller egg numbers result in no viable (able to live) baby chicks. This is an example of

• stabalizing

• disruptive

• directional

If finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?

• Directional selection
• Disruptive selection 
• Stabilizing selection

Human babies don't do well if they are born too small. If they are too big complications can occur during birth. Baby size should then be selected for by which method?

• stabilizing
• directional
• disruptive
• Beyonce is having twins

Genetic diversity decreases and individuals at the center of the curve have higher fitness.

• Disruptive Selection
• Directional  Selection
• Stabilizing Selection
• Artificial Selection

What type of natural selection is this: Small turtles are too weak to protect themselves from predators and large turtles are too slow to hide from predators. Average-sized turtles have high fitness.

• Disruptive Selection

• Directional Selection

• Stabilizing Selection

SELECT ALL THAT APPLY: Which of the following must be true in order for organisms to be considered the same species?

• They must be able to mate

• They must be able to produce viable offspring

• They must have structural similaries

• They must have the same bone structure

What happens when species produce too many offspring?

• Species share the limited resources 
• Species eat less so that all can survive
• Only those that are least fit can survive
• Only those that are best fit can survive