positively charged particle present in the nucleus of atoms

• Proton    
• Atomic number
•  Periodic table
• Electron

when deep, cold water rises from the ocean bottom to the ocean surface

• Producers
•  Evolution    
• Plankton
• Upwelling

introduction of harmful waste products, chemicals, not native to environment

• Consumers
• Food web
• Decomposers
• Pollution

organisms that make their own food (plants, plankton)

• Producers
•  Evolution    
• Plankton
• Upwelling

change in organisms over time due to environmental influence or competition

• Producers
•  Evolution    
• Plankton
• Upwelling

close interaction between two or more different species

•  Abiotic
• Community
• Symbiosis
• Matter

tiny organisms that float in ocean currents; most are unicellular and perform photosynthesis

• Producers
•  Evolution    
• Plankton
• Upwelling

negatively charged particles that move about the nucleus in an electron cloud

• Proton    
• Atomic number
•  Periodic table
• Electron

characteristic of a material that can be observed or measured without changing the identity of the material

• Physical property 
• Density 
• Solubility
• Law of conservation

organisms that eat producers

• Consumers
• Food web
• Decomposers
• Pollution