Ecology and environment test - September

A ______ is a set of components that function and interact in some regular way.

• output

• system

• component

• throughput

A process that increases a change to a system is called ____________.

• positive feedback

• negative feedback

A process that decreases a change to a system is called _________.

• positive feedback

• negative feedback

A __________ occurs when two or more processes interact so that the combined effect is greater than the sum of their separate effects.

• tipping point

• synergistic interaction

• positive interaction

• negative interaction

The study of how organisms interact with one another and with their physical environment of matter and energy is called _________.

• speciation

• cell theory

• biology

• ecology

The ___________ includes parts of the earth's air, water, and soil where life is found.

An ______ is an individual living being.

A group of individuals of the same species living in a particular place is called a ________.

An ________ is a community of different species interacting with one another and with their nonliving environment of matter and energy.

We ______ how many species are on the earth.

• know

• don't know