A part of the cell that directs all of it's activities.
What is the nucleus?
A system of organs, functioning in the process of gas exchange between the body and the environment.
What is the respiratory system?
An organism that can make its own food.
What is a producer?
A group of individuals that belong to the same species and live in the same area.
What is a population?
A population is critically low, on the verge of extinction.
What is an endangered species?
This is a rigid structure that supports the cell and is only found in plants.
What is the cell wall?
This system breaks down food into smaller molecules and absorbs these nutrients into the body.
What is the digestive system?
What does the arrow represent in a food web?
What is the movement of energy?
A group of different communities interacting with the abiotic factors in the environment.
What is an ecosystem?
A non-native species that disrupts food webs and causes a decline in native species populations.
What is an invasive species?
A cell structure transports materials in and out of the cell.
What is the cell membrane?
A type of muscle that is connected to the skeleton to form part of the mechanical system that moves the limbs and other parts of the body.
What is the skeletal muscle?
These 2 organisms are responsible for getting rid of dead organisms in the food chain?
What are decomposers or scavengers?
A relationship between two different species in which both species benefit.
What is mutualism?
Atmospheric gas that is the cause of global warming.
What is carbon dioxide?
This structure takes sugar and oxygen and makes energy for the cell.
What is the mitochondria?
A type of digestion that breaks down food by movement; grinding, squeezing, chopping, etc.
What is mechanical digestion?
The first level of consumers that eat only plants in a food web
What are herbivores?
A biotic or abiotic factor that restricts the number, distribution, or reproduction of a population within a community.
What is a limiting factor?
The variety of life in an area.
What is biodiversity?
These 3 cell structures are found ONLY in plant cells.
What is cell wall,chloroplast,and vacuole?
The five body organizational levels from simplest to most complex.
What are cells, tissues, organs, organ systems, organism
A network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
What is a food web?
Largest number of individuals of a population that a environment can support.
What is carrying capacity?
When heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
What is the greenhouse effect?