Science Basics
This part of the scientific method is what is being tested by running an experiment.
What is a hypothesis?
A water molecule is made up of these three atoms.
What is two hydrogens and one oxygen?
Organisms like algae and grass are considered this.
What are producers?
Only this amount of energy is passed on to organisms at each trophic level.
What is 10%?
All the interconnected feeding relationships in an ecosystem.
What is a food web?
The variable that is changed in an experiment.
What is an independent variable?
An atom is made up of these three particles.
What is a proton, neutron, and electron.
The simplest category of more than one organism in an ecosystem.
What is a community?
This is where almost all energy in an ecosystem comes from.
What is sunlight?
When similar species share a habitat, they form these to reduce competition.
What is a niche?
A explanation for the natural world that can be repeatedly tested and supported.
What is a scientific theory?
Enzymes are used in chemical reactions to do this.
What is speed it up?
All the members of one species that live in a specific area.
What is a population?
These organisms break down dead and decaying organic material.
What are decomposers?
Predators in an area would be considered this type of factor that affects population size.
What is a biotic factor or a density-dependent limiting factor?
Name three of the characteristics of living things.
What is
This is the energy needed to start a chemical reaction.
What is activation energy?
This is the portions of earth where all living things exist.
What is the biosphere?
An organism that produces its own food supply from inorganic compounds.
What is a detritivore?
Name the three types of symbiotic relationships.
What is mutualism, commensalism, and parasitism?
List the six steps of the scientific method.
What is
These are the four groups of macromolecules essential to life.
What are nucleic acids, proteins, lipids, and carbohydrates?
What is carbon, water, nitrogen, and phosphorous?
The total amount of living tissue at any trophic level.
What is biomass?
This is what it's called when we can predict how an ecosystem will evolve over time.
What is ecological succession?