A Protozoan and Its Resident Bacteria Invade the Body of a Worm

question 5

Multiple Choice

A protozoan and its resident bacteria invade the body of a worm. The bacteria release toxins and exoenzymes that immobilize and digest the worm, and the protozoan and bacteria absorb the nutrients produced. The relationship between the protozoan and the bacteria would best be described as

• A) commensalism.
• B) mutualism.
• C) parasitism.
• D) both commensalism and parasitism.
• E) a nonsymbiotic relationship.

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Definitions:

Pancreas

An organ in the digestive and endocrine systems that produces enzymes for digestion and hormones such as insulin for regulating blood sugar levels.

Nutrients

Substances needed by organisms to survive and grow, typically obtained from food, and essential for energy, growth, and cellular repair.

Blood Glucose

The concentration of sugar in the bloodstream, crucial for energy production and metabolic functioning.

Stability

The state or quality of being unchanging and consistent.