Ch. 3 Earth's Environmental Systems (3.1-3.3)

Front

All material in the universe that has mass and occupies space is called...

Back

matter

Front

The central core of every atom is called a(n)...

Back

nucleus

Front

Which type of macromolecule can act as hormones and serve as enzymes?

Back

protein

Front

Water molecules are composed of...

Back

1 oxygen 2 hydrogen

Front

The characteristic that is responsible for water's unique properties: surface tension, polarity, capillary action, ability to dissolve many substances

Back

polarity

Front

A process which regulates a system in which an event acts as both an input and output of the same system is called...

Back

feedback loop

Front

What is the name of the thin layer of rock that forms Earth's outer skin?

Back

crust

Front

Which of Earth's spheres consists of the layers of gases surrounding our planet?

Back

atmosphere

Front

Because of their large size, proteins, nucleic acids, carbohydrates, and lipids are together called

Back

macromolecules

Front

Predator prey relationships are an example of a

Back

negative feedback loop