As an Absolute Minimum, Change Filters _____

question 1

Multiple Choice

As an absolute minimum, change filters _____ .

• A) once per year when the system's output is reduced
• B) monthly
• C) at the beginning of the heating and cooling seasons
• D) weekly

---

Definitions:

Plant Hormones

Chemical messengers that affect a plant's ability to respond to environmental cues and regulate its growth and development.

Cytokinins

Plant hormones that promote cell division and growth, and influence various developmental processes.

Growth Factors

Natural substances capable of stimulating cellular growth, proliferation, healing, and cellular differentiation.

Nerve Cells

Specialized cells which are the primary components of the nervous system, responsible for transmitting electrical nerve impulses and communicating between different parts of the body.