Hydrology
Ecosystems
Chemistry
Evolution
Microbiology
100

The foundation of all marine food chains

What are plankton?

100

the ultimate source of all energy in an ecosystem

What is the sun?


100

the basic building block of all matter

What is the atom?

100

The first era of earth's time; where the sun, earth, and moon are formed

What is the precambrian era?

100

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?

200

the organization that is tasked with watching water quality of all drinking water in the United States

What is the Environmental Protection Agency?

200

the process of using light energy and carbon dioxide to make glucose and oxygen

What is photosynthesis?

200

the measure of mass per unit of volume

What is density?
200

the scientist made famous for his theory of evolution and study of the Galapogos islands

Who is Darwin?

200

a pathogen that reproduces through binary fission (direct copies), can be treated with antibiotics

What is bacteria?

300

Excess nitrates and phosphates in a body of water cause this

What is eutrophication (algae growth)?

300

a relationship that occurs when two or more organisms need the same resource at the same time

What is competition?

300

a column on the periodic table, placed together because they react in similar ways

What is a group/family?

300

the age of a layer of rock compared to the age of the layers around it

What is relative age?
300

a global outbreak of disease

What is a pandemic?

400
assessing the quality of water to determine if it is safe to drink, the water is ___________

What is potable?

400

A relationship between organisms of two different species in which at least one of the organisms benefits

What is symbiosis?

400

A substance made of two or more elements that are chemically combined

What is a compound?

400

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?

400

the mode of transportation that can quickly help an epidemic become a pandemic

What is the airplane or air travel?

500

A source of pollution that can be directly identified.

What is point-source pollution?

500

a diagram representing the energy available for each trophic level in an ecosystem

What is an energy pyramid?

500

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?

500

the collection of a rock's absolute age, analyzing radioactive elements and their properties

What is radioactive dating?

500
the process for pathogens and other organisms to adapt and develop traits that help that organism survive

What is natural selection?

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