Normally a set of beliefs or principles constructed by an authority as undeniably true: A law.

A situation that is extremely complicated or confusing.

The make up of the ecosystem of the earth, its atmosphere, and the living terrestrial organisms within it.

This refers to something being extremely wasteful.

A tree that loses its leaves annually, usually during the fall and winter seasons.

The state of having a large quantity of something

A component or part of a whole.

To support or strengthen.

Derived from coniferous. Trees that bear cones and needle-like leaves. These trees usually keep their leaves through all seasons, including winter.

The process organisms use in order to produce glucose as a food source.

Photosynthesis converts carbon dioxide, water, and sunlight, and converts it into glucose and oxygen.

These scientists study the physical, chemical, biological, and geological processes and interactions of the entire natural environment.

An individual who studies focus on regular functions of a living organism. In this case, the physiologist specializes in functions of plants.

Someone who studies and observes the interactions between an organism and its environment, an organism with another organism, or other non-living interactions of the environment.