Which Type of Animal Does Not Obtain Its Oxygen by Diffusion

question 14

Multiple Choice

Which type of animal does not obtain its oxygen by diffusion from surrounding water across the body surface?

• A) Sponges
• B) Dolphins
• C) Cnidarians
• D) Roundworms
• E) Frogs

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Definitions:

Blood Vessels

Tubular structures carrying blood throughout the body, including arteries, veins, and capillaries.

STI

stands for Sexually Transmitted Infection, which is an infection transmitted through sexual contact, caused by bacteria, viruses, or parasites.

Sexually Transmitted Infection

An infectious disease that is spread through sexual contact.

Teratogen

An agent or factor that causes malformation of an embryo or fetus.