Compare/contrast

 food webs vs. food chains

 energy vs. biomass pyramids vs. pyramid of numbers

Fill a glass with water above the rim. It forms a domed surface. Add a paper clip and watch it float, even though the paper clip is made of a metal that is denser than water. This is due to water's surface tension.

Which type of bacteria can be found in pairs, chains, squares of four, cubes of eight, or grapelike clusters? coccus bacillus spirillum staph

Why are phase changes shown in pairs on the phase change triangle?

The force that causes air to move into and out of the lungs is supplied by

Semisolid media such as MIO are used to determine motility. Another such medium such is SIM (sulfide, indole, motility) medium. When would you use SIM instead of MIO?

Which medullary index indicates a human hair? A. 0.653 B. 0.733 C. 0.516 D. 0.256

The process that transports solutes, including many drugs, into the tubular fluid is called

Which life cycle describes a plant that reproduces asexually and sexually? A. egg + sperm → embryo → adult with all its chromosomes → gametes → adult; gametes produce an organism with half the chromosomes B.

What would happen to the mass of a cell in a hypertonic, isotonic and hypotonic?

How do air and water movement, and land masses affect the climate