Retake: Unit 6 Frequently Missed

Which term describe that evolution takes place in bursts of rapid change and then long periods of stability?

• punctuated equilibrium

• gradualism

• Speciation

• Genetic Variation

If a cheetah species has no spots. A mutation produces a cheetah cub with spots. This helps the cheetah to hide and survive, so more cheetahs are born with spots. This continues until the spotless cheetahs are all replaced by spotted cheetahs. The species then stays that way for many years.

• Punctuated Equilbrium

• Gradualism

• Speciation

• Genetic Variation

Which terms describe that species are constantly changing in small ways over time?

• punctuated equilibrium

• gradualism

• Speciation

• Genetic Variation

This diagram of horse evolution shows that little by little over time the ancestors of horses had leg bones that went form 5, to 4, to , 3, to 2, to 1 foot bone. They also continuously got bigger and taller over time

• Punctuated Equilbrium

• Gradualism

• Speciation

• Genetic Variation

Which statement is NOT true about the structure of a virus?

• A virus has a nucleus

• The capsid surrounds the genetic material

• A virus is similar to a bacterium because they both have DNA

• A virus lacks a cell wall

When we use antibiotics they kill most of the bacteria, but not all. As a result...

• The same kinds of bacteria grow back

• The antibiotic resistant bacteria become more common

• The normal bacteria become more common

• All the resistant bacteria die

The data from this advertisement about vaccinations reminds us that, getting a vaccine helps your immune system...

• completely prevent an infection

• prepare and reduces the risk of infection

• to let the virus invade your cells

• shut down so that you definitely get sick

These skulls provide great evidence of evolution because they show that fossils...

• are really old

• change over time

• get buried in the layers of the Earth

• include genetic information

By looking at the position of these skulls in the layers of Earth, scientists can determine...

• the fossils absolute age

• the amount of time each organism was alive

• the fossils relative age

• what each animal liked to eat

This bone is being sampled to determine the amount of carbon that remains in the fossil. This process is called...

• relative dating

• ash analysis

• decay discovery

• absolute dating