Which of the Following Is a Likely Explanation as to Why

question 19

Multiple Choice

Which of the following is a likely explanation as to why terrestrial animals do NOT have a skeleton built entirely of cartilage?

• A) Cartilage grows quickly and must be replaced frequently,leaving organisms with a cartilaginous skeleton vulnerable to predators for most of their lives.
• B) Cartilage is too porous to be used as a skeletal material on land.The numerous holes in this tissue would lead to rapid water loss from the body.
• C) Terrestrial organisms require a living skeleton that can respond to environmental change.Cartilage does not contain cells and,therefore,cannot respond.
• D) Cartilage is not as strong as bone and probably cannot support the weight of the body against the pull of gravity.

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Definitions:

Symmetry

The quality of being made up of exactly similar parts facing each other or around an axis.

Chamfer

A symmetrical sloping surface at an edge or corner, often used to remove sharp edges.

Abbreviation

A shortened form of a word or phrase used to represent the whole, often to save space or time in writing.

Required

A term indicating that something is necessary or mandatory within a specific context, such as in design specifications or project requirements.