| A | B |
|---|
| taxonomists | scientists who study taxonomy |
| taxonomy | the scientific classification of organisms |
| Scala Naturae | Aristotles classification system "The ladder of life" |
| bionomial nomenclature | consisting of two names |
| species | a group of organisms that can mate with one another and produce fertile offspring |
| fungi | non-green organisms that reproduce from spores and absorb their food |
| bacteria | one-celled organisms without a nucleus |
| protoctist | an organism that has a nucleus but is not an animal, plant or fungus |
| botanists | scientists who study plants |
| zoologists | scientists who study animals |
| Division Bryophyta and Hepaticophyta | 25,000 species of mosses and liver warts that grow around the world |
| Division Fillicinophyta | Ferns that reproduce with spores, but they have tissues that conduct water and minerals |
| Division Coniferophyta | cone bearing plants that are evergreens with needle like leaves spruces, pines, and firs |
| Division Angiospermophyta | the 230,000 species of plants that use flowers for reproduction |
| Division Ginkgophyta | the gingko tree makes up this category |
| Phylum porifera | more than 10,000 species of sponges live in the ocean, but only 150 species live in fresh water |
| Phylum Cnidaria | this phylum contains many kinds of animals, but they have sth in common: circular design and stinging tentacles arranged around their mouths: Sea anemones, jellyfish, and coral |
| Phylum Platyhelminthes | flatworms, of which there are 15,000 species. White to bright green. the planarian is a flat work . Tapeworms can live inside human intestines. |
| Phylum Rotifera | 2,000 species of rotifers --microscopic animals that rotate. Most are females |
| Phylum Mollusca | about 11,000 organisms belong to this phylum. Mollusks have soft bodies. many mollusk species as vertebrate species (animals with a backbone) Giant squids are mollusks that live in the ocean. slugs, snail, and octopi |
| Phylum Annelida | segmented worms, including earth worms and leeches . The smallest is half a millimeter, the largest is 10 feet long |
| Phylum Echinodermata | organisms from this phylum are all marine animals and have five radiating body parts. Many can regrow lost body parts. Starfish, sand dollars, and sea urchins |
| Phylum Arthropoda | all of the animals have segmented bodies and exoskeletons. Insects, spiders, and crabs are arthropods . This is the largest phylum. these insects are valuable because they pollinate flowering plants and crops, making it possible for these plants to reproduce |
| Phylum Chordata | qll have a backbone. contains five classes: Class Pisces, class amphibia, class reptilia, class aves, and class mammalia |
