Food Webs in Action
Science

Ecological law that states that 10% of energy is passed from one trophic level to the next
10 percent rule
Ecological law that states that 10 of energy is passed from one trophic level to the next. 10 percent rule. The 10 percent rule means that when energy moves from one level of a food chain to the next, only about 10 of the energy is given to the next level, while the rest is lost mostly as heat.

A process of absorption of vitamins, minerals, and other chemicals from food
Assimilation
A process of absorption of vitamins, minerals, and other chemicals from food. assimilation. Assimilation is when your body takes nutrients from digested food and uses them to help build cells and maintain bodily functions.

The movement of a chemical through the living and nonliving parts of an ecosystem
Biogeochemical cycle
The movement of a chemical through the living and nonliving parts of an ecosystem. Biogeochemical cycle. A biogeochemical cycle is how elements like carbon and nitrogen move through living organisms and the environment.

The movement of organic and inorganic matter back into the production of matter
Nutrient cycling
The movement of organic and inorganic matter back into the production of matter. Nutrient cycling. Nutrient cycling is the natural process where essential nutrients are reused and recycled in ecosystems to support life.