The basic unit of life
Cells
Controls what enters and exits the cell
Cell membrane/plasma membrane
A group of individuals of the same species in the same place at the same time
Population
The smallest unit of matter
atom
Symbiotic relationship where both species benefits
Mutualism
Simple cells without membrane bound organelles
Prokaryotic/prokaryotes
Control center of the cell; contains the cell's DNA
nucleus
Occurs when organisms are in the need of the same resources
competition
Process in which plants use the sun's energy to create food (glucose) and oxygen
photosynthesis
Symbiotic relationship in which one species benefits and the other is neither helped nor harmed
commensalism
Unicellular
Instructions for the cell; contained inside the nucleus
DNA (deoxyribonucleic acid)
________ availability drives competition among organisms
Resource
Process in which cells break down glucose into ATP energy
cellular (aerobic) respiration
Symbiotic relationship where one species benefits while the other species is harmed
parasitism
Organisms made up of many cells
Multicellular
Site of photosynthesis; only found in plant cells
Chloroplasts
Average number of individuals in a population per unit area or volume
Population density
Pure substance with only one type of atom (oxygen)
element
An organism that hunts other animals for food
predator
Cells combine to form ________ which make up organs
Tissues
Site of cellular respiration; found in both plant and animal cells
Mitochondria
Population __________ describes how individuals in a population are distributed; random, clumped, or uniform
distribution
Pure substance made up of one or more types of atoms chemically combined in a specific ratio (carbon dioxide, CO2)
compound
Organism that gets hunted by another organism for its food
prey