Experiment: Remove about half of the grass by clicking the minus - button. There should
now be about 2,000 tons of grass. Click Advance year twice, and look at the Bar graph or
the Line graph. What happened to each population increase or decrease?
Prairie dogs:
Ferrets:
Foxes:
Prairie Dog
Ferret
Fox

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

Which are reasons cells undergo cell division?