Question

Long arms with short legs and a short, stable lumbar spine are traits associated with which of the following? Group of answer choices
1. arboreal quadrupedalism.
2. brachiation.
3. vertical clinging and leaping.
4. full-time bipedalism
5. terrestrial quadrupedalism.

Answer 1

Answer:

The correct answer is - option 2.

Explanation:

Brachiation is a movement or locomotion in which movement is occurred by the swinging from changing the hold from one arm to the other. In this primate such as spider monkeys, gibbons, and other similar primates those have long arms with comparatively smaller legs and stable but short lumbar spine. These longer arms help in making hold and swinging from one tree to another.

Thus, the correct answer is - option 2.

Answer 2

Answer:

Brachiation.

Explanation:

Arboreal activities are developed in the organisms that has the ability to fly and remains limited to the lands. Different arboreal mechanism include clinging, brachiation and leaping.

Brachiation is also known as the arm swinging in which the individual swings from one branch to other branch by using the arms only. The organisms that are adapted to brachiation has short legs and the longer arms. The lumbar spine is quite stable and supported by the forelimb.

Thus, the correct answer is option (2).