Animals are…

Bacteria are…

Ecology – Choose the term that corresponds with each definition.

A river that does not have other rivers flowing into it, one that is fed only by runoff, snowmelt, groundwater, and/or precipitation, would be considered a ___________ stream.

Oxygen gas (O2) is a _________ of photosynthesis.

Cells – Choose the term that corresponds with each description.

Use the following scenario to answer questions 24 – 27. 30 years ago, a ship sank off the coast of Argentina. A few rats escaped the sinking ship and swam to a remote island. The island was covered in ferns, and lizards spent their days sunbathing and consuming the ferns. When they arrived, the stranded rats began consuming the ferns as well, and their population grew. The diagram below depicts the size of the populations of the three species in the thirty years following the introduction of rats to the island.   Based on the information available, which limiting factor most likely caused the rat population to crash 15 years after their arrival?    

Atoms of carbon and atoms of nitrogen are considered to be different elements because they both have different amounts of…

Sugar (C6H12O6) is a _________ of photosynthesis.

A flock of flamingoes spent the summer at Lake Okeechobee in Florida. When they arrived, there were 100 birds in the population. Over five months the population experienced 20 deaths, 10 births, 20 emigrants, and 10 immigrants. Over this period, the population experienced…