Question

the mode of locomotion used by gorillas is known as:

bipedalism
knuckle-walking
brachiation
leaping

question 5
1 pts
lemurs are found in:

central africa
madagascar
galapagos islands
western asia

Explanation:

Identify gorilla locomotion

Gorillas are quadrupedal primates that travel on the ground.
We apply the concept of Locomotor Adaptations to identify their specific movement.
They walk on the dorsal surfaces of their middle phalanges.
This specialized quadrupedal behavior is called knuckle-walking.

Evaluate gorilla options

• Bipedalism is walking upright on two legs (typical of humans).
• Knuckle-walking is the correct mode for gorillas and chimpanzees.
• Brachiation is hand-over-hand swinging through trees (typical of gibbons).
• Leaping involves jumping from vertical cling positions (typical of many prosimians).

Identify lemur geographic distribution

Lemurs are endemic primates belonging to the suborder Strepsirrhini.
They evolved in isolation due to geographic barriers.
This isolation occurred on a specific island off the southeast coast of Africa.
That island is Madagascar.

Evaluate lemur options

• Central Africa is home to many anthropoids, but not lemurs.
• Madagascar is the unique geographic home of all wild lemurs.
• Galapagos Islands are famous for Darwin's finches, not primates.
• Western Asia does not have native lemur populations.

Answer:

Question 1

• (A) bipedalism
• (B) knuckle-walking (Correct answer)
• (C) brachiation
• (D) leaping

Question 2

• (A) Central Africa
• (B) Madagascar (Correct answer)
• (C) Galapagos Islands
• (D) Western Asia