Activities Quiz

Chapter 24: The Origin of Species

Activities Quiz

1 .

Feathers either play a role, or may have played a role, in _____. (Activity: Overview of Macroevolution)

courtship

gliding

flight

extended hops

all of these

2 .

_____ is rapid speciation under conditions in which there is little competition. (Activity: Overview of Macroevolution)

Microevolution

Paedomorphosis

Gene flow

Genetic drift

Adaptive radiation

3 .

Mass extinctions create conditions that promote _____. (Activity: Overview of Macroevolution)

microevolution

paedomorphosis

gene flow

genetic drift

adaptive radiation

4 .

The appearance of an evolutionary novelty promotes _____. (Activity: Overview of Macroevolution)

gene flow

mutation

mass extinction

paedomorphosis

adaptive radiation

5 .

The different finch species found on the Galápagos Islands probably arose as a result of _____. (Activity: Overview of Macroevolution)

artificial selection

adaptive radiation

mass extinction

gene flow

paedomorphosis

6 .

How do the skulls of adult chimpanzees and humans differ? (Activity: Allometric Growth)

Adult chimpanzees have a less angled skull.

Adult chimpanzees have less massive jaws.

Adult chimpanzees have heavier brow ridges.

Adult chimpanzees have flatter faces.

Adult chimpanzees have more rounded faces.

7 .

Click on the diagrams to start the animations.
The differences between chimpanzee and human observed in these animations is attributable to differences in _____.

(Activity: Allometric Growth)

life span

skull structure

bone composition

allometric growth

the appearance of the fetal skulls

8 .

What accounts for human infants having large heads on small bodies? (Activity: Allometric Growth)

formation of the head before the rest of the body during fetal development

allometric growth

the need to get the infant out through the birth canal

head cells having a different genotype than the cells of the rest of the body

at birth the human head is NOT relatively large compared to the rest of the body

9 .

Variations in allometric growth patterns demonstrate how _____. (Activity: Allometric Growth)

relatively large genetic changes can have a minor impact on phenotype

relatively small genetic changes can have a major impact on phenotype

chimpanzees and humans could not have a common ancestor

adult chimpanzees are basically juvenile humans that have gained the ability to reproduce

differences in the fetal skulls of chimpanzees and humans lead to very similar adult skulls

10 .

Which of these is a difference between the skull of an adult chimpanzee and the skull of an adult human? (Activity: Allometric Growth)

The chimpanzee skull is sharper and more angular.

The chimpanzee skull has heavier brow ridges.

The chimpanzee skull has more massive joints.

They result from different patterns of allometric growth.

All of these are differences between adult chimpanzee and adult human skulls.