The Fact That Every Organism Continuously Exchanges Chemicals and Energy

question 30

Multiple Choice

The fact that every organism continuously exchanges chemicals and energy with its surroundings indicates that organisms ________.

• A)are open systems
• B)are closed systems
• C)have tightly controlled thermoregulation
• D)osmoregulate

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Definitions:

Arachnids

A class of joint-legged invertebrate animals that includes spiders, scorpions, ticks, and mites.

Myriapods

A group of arthropods that includes centipedes and millipedes, characterized by having numerous legs.

Deuterostomes

A classification of animals characterized by the development of the anus from the first opening in the embryo, with the mouth forming later.

Echinoderms

A phylum of marine animals known for their radial symmetry and include starfish, sea urchins, and sea cucumbers.