What Is a Pheromone

question 30

Multiple Choice

What is a pheromone?

• A) a chemical that the brain uses for metabolic energy
• B) a chemical released by a gland that affects other parts of the body
• C) a chemical released by one animal that affects the social behavior of other animals
• D) a chemical released at the end of an axon that alters the activity of the next cell

---

Definitions:

Degrees of Freedom

The number of independent pieces of information available to estimate another piece of information or the parameters of a model.

Treatments

The conditions or interventions applied to participants in an experimental study.

F-Test

An F-test is a type of statistical test that compares the variances of two populations to determine if they are significantly different from each other.

Randomized Block Design

Randomized block design is a statistical experiment design that aims to reduce variation by grouping similar experimental units into blocks before randomly assigning treatments within blocks.