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2016 science review Guide
Terms in this set (86)
A push or a pull that acts on an object
Equal forces acting on an object in opposite directions
Forces that combine to produce a net force that is not equal to zero and cause the velocity of an object to change.
A force that pulls objects toward each other
A measure of the force of gravity on an object
A measure of the amount of matter in an object
A force that opposes motion between two surfaces that are in contact
An object's change in position relative to a reference point
Speed that does not change
Speed in a given direction
The overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time.
Change in velocity divided by the time it takes for the change to occur
The rate at which the velocity of a moving object decreases over time. Calculated by the final velocity minus the initial velocity
The force or speed with which something moves.
Defined as the product of the mass and velocity of an object
A force that causes an object to move in a circle
The tendency of an object to resist a change in motion
The combination of all forces acting on an object
The energy an object has due to its motion
Energy stored due to an object's position or arrangement
A force that is exerted only when two objects are touching.
A force that one object can apply to another object without touching it
A series of paired statements that describe physical characteristics of organisms, a tool used to identify unfamiliar organisms
Organisms that lack a notochord
Organisms that have a notochord
A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection. Limits growth
A skeleton on the inside of a creature's body, typically composed of bone or cartilage
a process by which characteristics that make an organism more suited to its environment become more common in a species
Any difference between individuals of the same species.
A change in DNA that can aid the organism in survival or limit the organism's survival.
A group of similar organisms that can breed and produce fertile offspring.
Changes in physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment.
morphological adaptations that allow organisms to blend into their surroundings
Method of breeding that allows only those individual organisms with desired characteristics to produce the next generation.
When a species produces large amounts of offspring to increase their chance of survival.
The introduction of a harmful substance into the environment.
Pollution coming from one source.
Pollution coming from multiple sources.
Materials that come from nature that humans can remove for their own use.
Nonrenewable fuels created from decomposing plants and animals.
Resources that can be used again.
Rosources that cannot be used again.
Not using wasteful or unnecessary resources.
Using less of a resource.
Using a material again after it has been used before.
Taking a damaged material and restoring it.
Taking a material and sending it to a plant where it can be converted into a new material.
Doing environmentally friendly things and changing your lifestyle.
A diagram that shows the flow of energy in an environment.
Plants that photosynthesize and are the the bottom of the food chain.
Organisms that only eat plants.
Organisms that only eat meat.
Organisms that eat both plants and animals.
A diagram that shows the transfer of energy between one set of organisms.
A diagram that shows the transfer of energy between all biotic parts of an environment
Succession in an area that has been completely disrupted.
Succession in an area that has been partially disrupted.
The final stages of succession.
Things in the environment that have never lived (water, rocks).
Things in the environment that have lived or are alive (dead frog, tree)
When species in the environment compete for a resource.
An organism that obtains energy by feeding on other organisms
A symbiotic relationship where the organisims benefit each other.
A symbiotic relationship where one organism benefits and the other organism is not affected.
A symbiotic relationship where one organism benefits and the other organism (host) is harmed.
The organism that holds and feeds the parasite.
The process of a seed sprouting and becoming a plant by using the energy stored in it.
When plants and animal use oxygen and sugar and make energy, carbon dioxide, and water.
The movement of water across a semi-permeable membrane from high to low concentration.
The transfer of pollen from the anther to the stigma.
An organism that feeds on a living host
When the sperm and the egg unite in the ovary.
Moves water and minerals from the roots to the leaves.
Moves glucose/food from the leaves to the roots.
The process of turning light into energy that the plant can use.
When water from the roots is released into the air by leaves.
Rich, dark organic material formed by decay of vegetable matter, essential to soil's fertility
Gradual recolonization of a disturbed area; species replaced by other species which are replaced by other species.
Observations using the 5 senses
An observation using numbers or measurements
A guess based on observations
Educated guess that can be tested
Newton's First Law
An object at rest will stay at rest, an object that is moving will stay moving unless disturbed by an un balenced force.
Newton's Second Law
Force equals mass times acceleration
Newton's Third Law
For every action there is an equal and opposite reaction
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