1.	An endangered species is: a race not seen in the wild for over fifty years an organism in danger of vanishing forever a species neither found in the wild or in captivity a species with less than 1,000 members
2.	The five kingdoms that all living things are classified in are: plants, animals, eukaryotes, prokaryotes, insects plants, animals, insects, fungi, protists plants, animals, insects, protists, monerans plants, animals, fungi, protists, monerans
3.	The number of existing species on earth today is: between 1.4 and 1.7 million 4 or 5 million more than 10 million not exactly known
4.	Scientists estimate that _____ of all species that have ever existed are now extinct? between 20-29% between 50-59% between 70-79% between 90-99%
5.	Where does the most dense concentration of species exist? zoos ocean rainforests swamps
6.	Which of the following is not a classification unit? phylum family class group
7.	What is penicillium notatum? a herb used to make tea a mold used to make antibiotics a plant species used to make basic food products a virus strain that threatens humanity
8.	Would extinction occur if mankind didn't cause it? yes no
9.	Who discovered penicillin? Francis Crick Alexander Fleming Louis Pasteur Marie Curie
10.	Aquaculture is an exciting new field of food production that: uses large fleets of boats to strip the ocean floor of aquatic life employs scuba divers to harvest ocean plants domesticates marine and freshwater animals builds underwater farms beneath glass domes