Energy
The source of energy for most Earth ecosystems
What is the sun?
A simple diagram that shows one way energy flows through an ecosystem
What is a food chain?
Nonliving matter that living things need to survive
What is a nutrient?
What is biodiversity?
Base of the pyramid; where producers are found
What is the first trophic level?
Growth, reproduction, nourishment, and staying alive
What are activities living things need energy for?
What is a food web?
How matter flows through an ecosystem
All living organisms and nonliving things in a certain area with specific environmental factors
What is an ecosystem?
An apex predator
What is a tertiary consumer?
From the sun to primary producers, then primary consumers, then secondary consumers, etc.
What is the direction of energy flow in an ecosystem?
The base of the food chain
What are producers?
The organisms that break down dead organisms to release nutrients
What are decomposers
Upper layer of soil containing decaying plant matter
What is humus?
How energy flows through an ecosystem
What is energy transfer?
The chemical energy created by plants from an abiotic factor
What is solar energy?
What is used to build bodies and carry out the processes of life
What is matter?
Organisms with four pairs of legs
What are arachnids?
The unit used to measure energy in an ecosystem
What is a kilojoule (joule)?
Tertiary consumers/top of the food chain
What are apex predators?
What is disruption of flow
Equipment to extract small organisms from their habitat
What is a Burlese-Tullgren apparatus
Organisms found on the third trophic level
What are secondary consumers?