Sharks, Rays, and Skates Retain Urea and Trimethylamine Oxide (TMAO)

question 23

True/False

Sharks, rays, and skates retain urea and trimethylamine oxide (TMAO) within their blood allowing them to become only slightly hyperosmotic thereby reducing the cost of osmoregulation.

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Definitions:

Egoism

Egoism is the ethical stance that treats self-interest as the foundation of morality.

Ethical Egoism

The ethical theory that individuals should act in their own self-interest and that this serves the common good.

Reason

The mental capacity of an individual to consciously make sense of things, establish and verify facts, and change or justify practices based on new or existing information.

Morality

Rules that differentiate between what is considered morally correct and incorrect conduct.