Show:
GEOLOGY
GEO/TOPO/WEB
WEB
ECOLOGY
ECOLOGY 2
100
What is Wegener's theroy of continental drift?
Wegener thought that the continents of Earth were once joined in a single landmass, called Pangaea.
100
How do scientists think that the outer core contributes to producing the Earth's magnetic field?
The outer core, made of iron and nickel, contains convection currents that cause the inner core, a hard, dense ball, to spin.
100
What is the organization of a food web from the top down?
Consumers are organisms that eat other consumers and producers because they can not produce their own food. Producers are organism that produce their own food Decomposers are organism that break down consumers and producers and return their energy to the food web after they die.
100
What are biotic factors?
Biotic factors are living factors of the environment. Biotic factors include predation, mutualism and commensalism.
100
What are first organisms to populate an area that may only have ash and rock called?
pioneer speices, include lichens
200
What is the mid-ocean ridge?
The mid ocean ridge is the longest chain of mountains in the world. mostly under water. The mid ocean ridge is where new sea floor is created through sea floor spreading.
200
Descirbe plates in relation to the lithosphere and asthenosphere.
The plates of Earth are part of the lithosphere. The plates float on top of the molten asthensphere.
200
What is an adapation?
An adapation are behaviors and physical characteristics of a species that allow them to live successfully in their environment.
200
What are examples of abiotic factors?
Abiotic factors are non-living factors in an ecosystem, and include temperature, amount of water, amount of oxygen, amount of light, soil composition and available resources.
200
What is evolution?
Evolution is the change of a species over a long period of time.
300
What is subduction?
Subduction is the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle.
300
What do topographical maps show?
Topographical maps show the shape of Earth's surface.
300
What happens to individuals with characteristics that are suited to its environment?
They tend to survive and reproduce.
300
What type of organism is responsible for breaking down the waste material in a food web?
Decomposers, like fungus, are responsible for breaking down waste material in the food web.
300
What is natural selection?
Natural selection is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce.
400
What is the theory of plate tectonics?
The theory of plate tectonics states that pieces of the Earth's lithosphere are in constant, slow motion.
400
Describe countour lines.
Coutour lines are lines on a topographical map that show areas of equal elevation. The never cross each other and get closer together as land becomes steeper.
400
What are three types of symbiotic relationships?
A symbiotic relationship is a type of biotic factor that includes mutualism (both organisms help each other), parasitism (one organism benefits while harming the other) and commensalism ( one organism benefits, but does not harm the other).
400
What is succession?
Succession is a predictable change that happens in an environment. There is primary succession and secondary succession.
400
What is a variation?
Variations are differences between individuals of the same species.
500
Plate movement producing stress in a rock which can lead to a change in the shape or volumne of the rock is called?
deformation
500
What do food webs show?
Food webs show feeding relationships in an ecosystem. They include interconnecting food chains.
500
Under what conditions would a population of prey increase?
If there wer fewer predators.
500
What is the difference between primary and secondary succession?
Primary succession occurs when there is no soil to start out with. Lichens and erosion decompose the rock to create soil, leading to simple plants, then grasses, then trees, and finally animals. Secondary succession occurs when soil already exists, like after a forest fire or other disaster.