Chemistry
What is the number of neutrons in a Pb atom?
125
What percentage of the earth's water is salt water?
97%
Which microbe is one billionth of a meter in size?
Virus
What is the type of fossil used in relative dating of rock layers?
Index fossils
What is the name associated with the living part of an ecosystem?
Biotic factors
How many valence electrons are in Nitrogen?
Five
What is the name of the process in the water cycle that includes the movement of water vapor from earth's surface and plants?
Evapotranspiration
What is the name of the method of sexual reproduction in bacteria?
Conjugation
What type of plate boundary is located at a Mid Ocean Ridge?
Divergent boundary
What is the name of the tropic level that is at the bottom of a terrestrial ecosystem?
Producer
What sub-atomic particles are located in the nucleus of a Calcium atom?
Protons and Neutrons
What is the process used to produce food beneath the ocean around hydrothermal vents?
Chemosynthesis
What is the name of the disease that Dr. Jennings first injected into his infant son while discovering the first vaccine?
Cow pox
What is Law used in dating rock layers according to their position?
Law of Superposition
What percentage of energy is passed from one tropic level to the next?
Ten percent
What is the group name containing Boron?
Metalloids
What are the three categories of macroinvertebrates?
Intolerant, Somewhat tolerant, and tolerant
Which type of microbe must reproduce in a living host cell?
Virus
Which types of structures indicate a shared ancestry?
Homologous structures
What is the name given to all the populations that live in an area at the same time?
Community
What is the chemical formula for Ammonia?
NH3
What are the two places we retrieve most of the water we drink on the earth?
Rivers and Lakes
What is the scientific name of the disease that killed 1/3 of Europe during the Dark Ages?
Botulinum toxin
What is the name of the Epoch we are currently experiencing?
Halocene
If there are 5 trophic levels in an ecosystem including the producers, then how much energy will remain at the top level? The producers possess 100,000 kilocalories.
10 kilocalories