Natural Selection

What causes strep throat?

• A virus

• Fungi

• Bacteria

• Allergies

What are antibiotics designed to destroy?

• Virus cells

• Eukaryote cells

• Cancer cells

• Prokaryote cells

What is a concern mentioned about antibiotics?

• Cost

• Taste

• Availability

• Antibiotic resistance

What is natural selection a mechanism of?

• Photosynthesis

• Evolution

• Respiration

• Digestion

In the frog example, why do darker frogs have more fitness?

• They are harder for predators to see

• They are faster

• They are stronger

• They live longer

What determines a frog's fitness in the biological sense?

• How loud they can croak

• How fast they can jump

• How many offspring they have

• How long they live

What can cause variation in traits among frogs?

• Diet

• Willing it to happen

• Exercise

• Random mutations

What happens to traits that negatively affect an organism's fitness?

• They are passed down to all offspring

• They have no effect

• They become more common

• They are not passed down

What might some bacteria have that helps them resist antibiotics?

• A larger size

• A faster reproduction rate

• An enhanced cell wall

• A stronger virus

How can resistant bacteria spread their resistance to other bacteria?

• By moving faster

• By consuming antibiotics

• By transferring genes

• By growing larger