A recipe calls for baking soda, but a baker accidentally adds salt instead. The cake turns out flat and dense. What type of mutation does this model represent?

What is the process by which traits that improve survival and reproduction become more common over time?

Why did gray frogs become more common when the environment was gray?

What type of adaptation would help a desert plant survive in its environment?

A population of moths became darker over time as pollution darkened the trees they rested on. What caused this change?

What term describes a trait that improves an organism's chance of survival and reproduction?

What type of mutation occurs when one gene is replaced by another?

A scientist discovers a mutation in a species of fish that makes them more resistant to disease. What type of mutation would this be considered?

If a mutation causes an albino trait in cats, how might this affect their survival in the wild?

What type of mutation occurs when an extra gene is added to a DNA sequence?

What term describes the preserved remains or traces of ancient organisms?

What type of structure shows that different species have a common ancestor?

Shark fins and dolphin fins have similar functions but different structures. What type of structures are these?

Whales have small bones deep inside their bodies that are not used for swimming. How does this support the theory of evolution?

A mutation causes a fish to have poor eyesight, making it harder to find food and avoid predators. What type of mutation is this?