Controlled Experiment
The group in a controlled experiment that is NOT being tested. Provides a benchmark.
Control group
All living things are composed of ___. The smallest unit of living matter. The building blocks of life.
cells
What is an organism's job or role in an ecosystem called?
niche
What type of growth curve is J-shaped?
Exponential
What process turns liquid water into a gas?
Evaporation
The factor in a controlled experiment that is being tested in the experimental group.
Independent Variable
The stable level of internal conditions within an organism.
homeostasis
Temperature is an example of what kind of factor?
Abiotic
What is the maximum number of organisms an area can support called?
Carrying capacity
What are the organisms called that convert atmospheric nitrogen into usable compounds?
Bacteria
Those factors in a controlled experiment that are NOT changed. These factors are the same in both the control group and experimental group
controlled variables
The ability to respond to stimuli.
irritability
A bee pollinating a flower is an example of what type of symbiotic relationship?
mutualism
What type of factor is a natural disaster?
Density-independent
What process do plants use to take in carbon dioxide?
Photosynthesis
The factor driven by the independent variable. The one we are measuring.
dependent variable
Plants obtain their energy through a process called...
photosynthesis
Organisms that get energy from photosynthesis are called __ or __
autotrophs or producers
Which survivorship curve shows a sharp drop at the beginning?
Type 3
What is the main reservoir for phosphorus on Earth?
Rocks
The number of variables being tested in a controlled experiment.
One
Organisms that consume other organisms for energy.
heterotrophs
If a producer is worth 550 calories, how much energy gets to the tertiary consumer?
0.55 calories
What is the term for organisms leaving an area?
Emigration
What process returns nitrogen gas to the atmosphere from nitrates?
Denitrification