Suppose You Are Given Unlabeled Cultures of Colonies of Cyanobacteria

question 40

Multiple Choice

Suppose you are given unlabeled cultures of colonies of cyanobacteria and purple sulfur bacteria.How can you use an obligate aerobic eukaryotic organism to test which colonies are which?

• A) Add the aerobe to each culture;cyanobacteria will be toxic to other organisms.
• B) Add the aerobe to each culture;purple sulfur bacteria will be toxic to other organisms.
• C) Add the aerobe to each culture;cyanobacteria will provide the required oxygen if allowed to photosynthesize.
• D) Add the aerobe to each culture;purple sulfur bacteria will provide the required oxygen if allowed to photosynthesize.
• E) The aerobe cannot be used to test which colonies are which.

---

Definitions:

Pollutants

Substances that contaminate air, water, or soil, potentially causing harm to human health, the environment, or property.

Trespass

Trespass is an unlawful intrusion or encroachment onto property owned or legally occupied by another, without permission or legal right.

Intentional Harm

The deliberate infliction of damage or injury on another person or their property.

Property

is any physical or intangible entity that is owned by an individual or collectively, subject to the rights and responsibilities of ownership.