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The smallest structural and functional unit of an organism.
Examples: nerve cells and brain cells
is made up of similar cells that combine to perform a function.
group of similar cells performing a job or function
Examples: nerve tissue and brain tissue
Similar tissues combine to make ?
Tissues organized into brain, heart, lungs, stomach, etc.
Examples: brain, skin, stomach
The result of several organs working together to perform a function.
Examples: digestive system, nervous system and cardiovascular system
Organ systems work together to make an ?
Individual living thing (person, dog, plant, etc.)
Example: human
group of one kind of organism (species) in an area that can interbreed & make fertile offspring --- (cardinals at the bird feeder)
Several populations of organisms in an area --- (animals in the zoo)
All the living (biotic) and nonliving (abiotic) parts of an environment --- (Tropical rain forest, grassland, etc.)
Large areas of the world with similar climates and organisms
All the living and nonliving things on Earth
