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The Hydrosphere
Chemistry
Evolution in Organisms and Landforms
Cells and Cell Theory
Microbiology
100
Water is called the _____ because it can dissolve more substances than any other substance on earth.
What is the universal solvent?
100
Which of the following statements refers to a physical property of a substance? A- Carbon combines with oxygen to form carbon dioxide. B- The density of copper is 8.93 g/cm3. C- Acids are corrosive. D- Zinc metal reacts with an acid to produce hydrogen gas.
What is A- The density of copper is 8.93 g/cm3?
100
During what geologic time period and era did humans evolve?
What is the Quaternary Period of the Cenozoic Era?
100
1-All living things are composed of one or more cells. 2-A cell is the basic unit of structure and function in all living things. 3-All cells come from other living cells. These statements are part of....
What is the cell theory?
100
A tiny organism which can only be seen with a microscope...
What is a microbe?
200
The force that acts on the particles at the surface of a liquid.
What is surface tension?
200
The name given to any chemical that is shown to cause cancer.
What is a carcinogen?
200
According to geologic time, what organisms evolved first? **Amphibians **Fish **Insects **Reptiles
What are fish?
200
The structure that surrounds the cell, providing a barrier between the inside of the cell and the cell's external environment...
What is the cell membrane?
200
A microbe which consists of a nucleic acid enclosed within a protein shell that requires a living cell in order to reproduce...
What is a virus?
300
The ability of a fluid to exert an upward force on an object that is immersed in a fluid.
What is buoyancy?
300
The ability of a metal to be hammered into a thin sheet like aluminum foil.
What is malleability?
300
This geologic law states that in undisturbed sedimentary rock layers, older layers of rock lie beneath younger rock layers.
What is the law of superposition?
300
The organelles which are responsible for changing energy from nutrients into a form that cells can use. Sometimes referred to as the ...
What is the mitochondria?
300
Most microbes are ____ because they lack a nucleus.
What are prokaryotes?
400
Oceans cover nearly ____% of the Earth's surface.
What is 71%?
400
The part of the atom which is found on the outside of the nucleus and has a negative charge.
What is the electron?
400
Alfred Wegener's idea that the continents were once part of a single landmass that gradually split apart and then moved to their present locations is explained by
What is the theory of plate tectonics?
400
Organelles which are used to synthesize proteins...
What are ribosomes?
400
An organism which has a nucleus is...
What is eukaryotic?
500
Which of the following describes the tendency of a water molecule to stick to other water molecules? Cohesion Density Adhesion Buoyancy
What is Cohesion?
500
What physical properties make metals suitable for use in electrical wiring?
What are conductivity and ductility?
500
Which of the following is a natural cause of species extinction? **environmental change **pollution **overhunting **evolution
What is environmental change?
500
Plant cells have these but animal cells do not...
What are chloroplasts and cell walls?
500
Any microbe which causes a disease is...
What is a pathogen?