List the characteristics of all living things.
1) All living things are made up of one or more cells.
2) All living things respond to their environment.
3) All living things are able to reproduce.
4) All living things need energy from metabolism.
What is a group of genetically similar organisms that can produce fertile offspring?
a species
All living organisms are composed of these.
cells
define homeostasis
regulation and maintainance of constant iternal conditions in an organism.
The process by which organisms make more of their own kind.
reproduction
A scientist noticed that the number of salamanders in ponds was declining. This is an example of what step in the scientific method?
observation
Name the order in which the steps of scientific investigations are most typically applied.
Observation, Hypothesis, Predictions, Controlled Testing, Theory, Verification
The English physician Ronald Ross wanted to find the cause of malaria. Based on his observations, Dr. Ross suggested that the Anopheles mosquito might spread malaria from person to person. What part of the scientific method is this suggestion?
hypothesis
A hypothesis is a:
Educated guess to how an experiment will turn out.
What is a planned procedure to test a hypothesis called?
experiment
The variable that is measured in an experiment is the ________ variable.
The dependent variable
What is a scientific theory?
A theory that explains observations in an experiment.
Name the 3 parts of an atom.
protons, neutrons, and electrons
What is the smallest particle of matter that can retain the chemical properties of that matter?
Carbon Atoms
What is a substance that is composed of only one type of atom?
an element
What kind of molecule has a partial positive charge on one side and a partial negative charge on the other side?
a polar molecule
Describe an ionic bond.
When atoms lose or gain electrons.
Why do oil and water not mix when put into the same container?
Water is polar and oil is nonpolar.
Define organic and inorganic. Give examples of each.
Inorganic compunds usually don't have carbon; organic compounds usually do. Inorganic: Dihydron Monoxide, organic: Methane
All organic compounds contain the element...?
carbon
List some organic monelcules that are classified as carbohydrates.
sugar