In the Section "Investigating Life: the Hidden Cost of Hygiene",flatworms

question 27

Multiple Choice

In the section "Investigating Life: The Hidden Cost of Hygiene",flatworms are very thin and lack a specialized respiratory or circulatory system.How does oxygen reach their cells?

• A)through spiracles
• B)diffusion through the wall of their body
• C)through gills
• D)through lungs
• E)through capillaries

---

Definitions:

Taste Receptor Cells

Specialized cells found in taste buds that are responsible for detecting different tastes like sweet, sour, salty, and bitter.

Taste Buds

Sensory organs located on the tongue that are responsible for perceiving different tastes.

Gestalt Principles

Principles that describe the brain’s organization of sensory information into meaningful units and patterns.

Hearing

The sensory process by which sound waves are transformed into electrical signals that are interpreted by the brain as sound.