Please Use the Following Information to Answer the Questions Below

question 79

Multiple Choice

Please use the following information to answer the questions below.
Healthy individuals of Paramecium bursaria contain photosynthetic algal endosymbionts of the genus Chlorella.When within their hosts,the algae are referred to as zoochlorellae.In aquaria with light coming from only one side,P.bursaria gathers at the well-lit side,whereas other species of Paramecium gather at the opposite side.The zoochlorellae provide their hosts with glucose and oxygen,and P.bursaria provides its zoochlorellae with protection and motility.P.bursaria can lose its zoochlorellae in two ways: (1) if kept in darkness,the algae will die;and (2) if prey items (mostly bacteria) are absent from its habitat,P.bursaria will digest its zoochlorellae.
-Which term best describes the symbiotic relationship of well-fed P.bursaria with their zoochlorellae?

• A)mutualistic (each species benefits from the other)
• B)photosynthetic
• C)parasitic
• D)predatory

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Definitions:

Subcutaneous Injection

A method of administering medication into the fatty layer of tissue just beneath the skin.

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A hormone produced by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food for energy or to store glucose for future use.

Medication Abuse

The improper or unsafe use of drugs, often leading to addiction and health problems, which can be either prescription or over-the-counter substances.

Medication Dependence

A condition in which an individual requires a medication to function normally and experiences physical or psychological effects from withdrawal.