Self-Check 6 : Modern Human Origins & Variation

Question 1

What genetic evidence is used to support the multi-regional hypothesis of human origins?

Answer 1

Neanderthal genes in the modern human genome

Question 2

The oldest Homo Sapiens fossils have been found in :

Answer 2

Africa

Question 3

Which of the following anatomical characteristics is unique to Homo sapiens

Answer 3

Canine fossa, chin

Question 4

What genetic evidence is used to support the Out of Africa hypothesis of human origins?

Answer 4

greater genetic diversity on the African continent

Question 5

According to current fossil evidence, the earliest H. sapiens fossils found outside of Africa were discovered in:

Answer 5

Greece

Question 6

The Out of Africa hypothesis argues that all species that emerged after Homo erectus should be considered Homo sapiens.

Answer 6

False

Question 7

According to current fossil evidence Homo Sapiens was the first hominin species to migrate to ______, suggesting we had advanced watercraft technology as early as 60,000 years ago. Our species was also the first to make _______.

Answer 7

Australia, projectile weapons

Question 8

Which of the following hominin species was contemporaneous with Homo sapiens, had an Australopith-sized brain, and advanced technology?

Answer 8

Homo floresiensis

Question 9

Adaptations are long-term______ changes in response to the environment.

Answer 9

Genetic

Question 10

Variations in human skin color are adaptations related to _______.

Answer 10

UV exposure

Question 11

Phenotypic plasticity is the ability to respond ________ to environmental change.

Answer 11

Physiologically

Question 12

Why is the biological race concept inadequate for explaining observed patterns of human phenotypic variation?

Answer 12

• there is more genetic variation within continental populations than between them
• traits used for racial classifications are continuous