The foundation of all marine food chains
What are plankton?
the ultimate source of all energy in an ecosystem
What is the sun?
the basic building block of all matter
What is the atom?
The first era of earth's time; where the sun, earth, and moon are formed
What is the precambrian era?
the most widespread cause of disease in humans, can be controlled or prevented by the use of vaccines and antiviral drugs
What is a virus?
the organization that is tasked with watching water quality of all drinking water in the United States
What is the Environmental Protection Agency?
the process of using light energy and carbon dioxide to make glucose and oxygen
What is photosynthesis?
the measure of mass per unit of volume
the scientist made famous for his theory of evolution and study of the Galapogos islands
Who is Darwin?
a pathogen that reproduces through binary fission (direct copies), can be treated with antibiotics
What is bacteria?
Excess nitrates and phosphates in a body of water cause this
What is eutrophication (algae growth)?
a relationship that occurs when two or more organisms need the same resource at the same time
What is competition?
a column on the periodic table, placed together because they react in similar ways
What is a group/family?
the age of a layer of rock compared to the age of the layers around it
a global outbreak of disease
What is a pandemic?
What is potable?
A relationship between organisms of two different species in which at least one of the organisms benefits
What is symbiosis?
A substance made of two or more elements that are chemically combined
What is a compound?
The concept that as rock layers are laid, older layers are pushed to the bottom and younger layers are laid on top
What is the law of superposition?
the mode of transportation that can quickly help an epidemic become a pandemic
What is the airplane or air travel?
A source of pollution that can be directly identified.
What is point-source pollution?
a diagram representing the energy available for each trophic level in an ecosystem
What is an energy pyramid?
the amount of matter does not change in a chemical reaction, the reason why chemical equations must be balanced
What is the Law of Conservation of Mass?
the collection of a rock's absolute age, analyzing radioactive elements and their properties
What is radioactive dating?
What is natural selection?