Raw Sewage Would Contribute to the Biochemical Oxygen Demand of a Stream

question 20

True/False

Raw sewage would contribute to the biochemical oxygen demand of a stream and cause fewer organisms to be present.

---

Definitions:

Ecdysone

A hormone involved in the molting process of insects, driving the shedding of the old exoskeleton and the development of a new one.

Invertebrate Hormone

Hormones in invertebrates that regulate growth, metabolism, and development, similar to those in vertebrates but often with different functions and mechanisms.

Steroid

Lipid with four carbon rings, no fatty acid tails.

Exocrine Gland

Gland that secretes milk, sweat, saliva, or some other substance through a duct.