gas used by photosynthetic organism to produce glucose
Carbon Dioxide
rearrangement of the atoms of one or more substances resulting in the formation of at least one new substance
Chemical Reaction
when light bounces off an object
Reflection
any organism that eats
Consumer
shows energy eating relationships among organisms
Food Web
powerful events in ecosystems that impact several other populations
Photosynthesis
a force that keeps us attracted to earth
Gravity
positive particles in an atom
Protons
the sun, moon, and earth line up and block light from earth
Lunar Eclipse
Smallest particles that everything in the world is made of
Atoms
chemical process that uses oxygen to create carbon dioxide and energy
Cellular Respiration
gas produced by photosynthetic organisms during photosynthesis
Oxygen
sugar molecule
glucose
element that helps organisms grow and is used to make proteins
Nitrogen
condition that affects one or more body systems
Disease
principle that states matter is neither created nor destroyed in reactions
Law of Conservation
process in which molecules naturally move from a higher concentration to a lower concentration.
Diffusion
the job a structure does
Function
a group of organs that work together to perform one or more functions
Organ System
a group of tissues working together to perform a specific function in the body.
Organ
the variety of species in the world or in a particular ecosystem
Biodiversity
a specialized cell transmitting nerve impulses from the brain
Neuron ( Nerve)
organ system that turns the food you eat into nutrients
Digestive System
chemical process that uses oxygen to create carbon dioxide and energy
Cellular Respiration
a signal usually from outside the body that triggers a response from the body.
Stimulus