Day 7 of Chapter 4

Multiple Choice

Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution

Multiple Choice

A population is...

Multiple Choice

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

Fill in the Blank

What word describes a trait that helps an organism survive in its environment?

Multiple Choice

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 organism knew it needed that trait, survives, and passes it on.

Open Ended

Why is the mouse population changing over time?

Multiple Choice

Which of the following statement explains why an antibiotic which has been working effectively is no longer effective in fighting infections?

• Bacteria X acquired the ability to use the antibiotic as food.

• Antibiotic-resistant forms of bacteria X have survived and multiplied.

• Bacteria X located a different organism to attack.

• Bacteria X learned to avoid environments with antibiotics.