scientific Methods
what does a hypothesis do
introduces a research question and proposes an expected result.
What does nuclear energy do.
the energy in the nucleus, or core, of an atom.
What does Populations mean?
a group of individuals, objects, events, organizations, etc.
What does Natural selection do for us
This results in a new generation of organisms that are more likely to survive to reproduce.
What is a dependent variable.
what changes as a result of the independent variable manipulation in experiments.
What does chemical energy do
A chemical is any substance that has a defined composition. In other words, a chemical is always made up of the same "stuff." Some chemicals occur in nature
what does pouplations density mean
allows for broad comparison of settlement intensity across geographic areas.
What's an independent variable?
An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
What does the food chain mean
The food chain describes who eats whom in the wild. Every living thing—from one-celled algae to giant blue whales—needs food to survive.
What does exothermic mean and what does it do
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise.
what does a Experimental group?
receives the variable, or treatment, that the researchers are testing.
Why is secondary production good and what does it do
can represent the formation of mass for an entire trophic level.
What does prediction mean and do
an act of saying what will or might happen in the future
What does a control group do?
establish a cause-and-effect relationship by isolating the effect of an independent variable.
What does the food web is good and what does it do good for us
This balance helps the ecosystem maintain and recycle biomass.
an act of saying what will or might happen in the future
A habitat is a place where an organism makes its home.