Ecology
"Ecology" is best defined as the study of ________.
the interaction of living creatures with their surroundings
What is the universe
All the galaxies, stars, nebula, planets, comets and vast empty voids of space -all matter and energy.
The two kinds of electric charge.
Positive, Negative
What is a atom?
Smallest piece of matter that is still considered an element.
What is the science of the origin, history, and structure of the Earth called?
Geology
A researcher is looking into how sea slugs react to predators. What ecological level does this represent on the hierarchical scale?
community
When was the universe created?
During the Big Bang
Describes an object that has equal amounts of positive and negative charges
Electrically Neutral
an element is determined by the number of _________ in its nucleus (also known as its atomic number.)
proton
What is energy from the internal heat of the Earth called?
Geothermal
Sunlight
What is redshift?
stretching increases the light's wavelength moving it towards longer wavelengths - hence redshifted.
Describes an object whose net charge is not zero
Charged
______ are used to learn about atoms because atoms are so small
microscopes
What is the trapping of the sun's solar energy and radiation called?
Greenhouse Effect
10
What are galaxies made of?
stars, gas, dust, and dark matter, held together by gravity.
What is a parallel circuit
a circuit in which electric current flows through more than one path
what is the center of the atom
nucleus
78% of the earth's atmosphere is composed of which gas?
Nitrogen
The ecosystem's living components.
Biotic factors
What are star?
A large ball of matter that is undergoing nuclear fusion and emitting light and other forms of electromagnetic radiation.
What is series circuit?
a circuit in which electric current flows in the same direction along a single path
protons have a _________ charge
positive
What are the broken-off pieces of glaciers that make it to the open sea called?
Icebergs