Chemistry
Energy Resources
Energy Resources
Energy from waste material of living things
biomass
where is most of Earth's freshwater
glaciers
Which type of symbiosis is it when both organisms benefit (ex. bee and flower)
A trait that HELPS an organism survive is an ____________
adaptation
making an exact copy of an organism is called ____
cloning
The number of protons EQUALS the number of ___________ in a nuetral atom.
Electrons
What technology uses sound waves to determine underwater depth of the ocean?
SONAR
Excess ______ in the atmosphere is causing global warming and the greenhouse effect.
Carbon Dioxide
EVIDENCE of something once living is a _________ fossil (ex. footprint)
trace
the living thing a virus or parasite gets in or on is called the __________
host
the beginning substances in a chemical reaction are called
reactants
How does temperature affect the dissolved oxygen in the water?
hot= more oxygen
What is another word for producer in the food chain
autotroph
Homologous structures or Comparative Anatomy support the theory that living things evolved from ______________.
one common ancestor
living organisms that can transmit infectious pathogens between humans and/or animals (ex. mosquito)
vector
a sign of a chemical reaction in which a solid forms from solution
precipitate
Excess nitrates in the river most likely comes from _____________.
fertilizer, waste
The largest population an environment can support is called its __________
carrying capacity
Theory that states the best adapted organisms are the ones that survive and reproduce (survival of the fittest)
Natural Selection
Medicines that are used to treat bacterial infections
antibiotics
What determines how chemically active an element is?
valence electrons
Ecosystem in which hot gases and chemicals come out at cracks in the ocean floor (black smokers)
hydrothermal vents
Process in which bacteria turns nitrates back to nitrogen gas to go back into the atmosphere
denitrification
A fossil of an organism that only lived a short time and is used to date rock layers (ex. trilobite)
index fossil
process in which bacteria reproduce by splitting in two
binary fission