3.
animals that have a backbone
4.
animals that do not have a backbone
5.
also known as a "segmented" worm because it has many rings that are actually individual segments
6.
a soft-bodied organism that usually has a shell
7.
includes classes such as Arachnida and Insecta
8.
a skeleton that exists outside the body as a hard shell-like covering
9.
includes animals that have 6 legs, and a head, thorax, and abdomen
10.
arthropods with 2 body parts and 8 legs
11.
long, segmented bodies with one pair of legs per segment
12.
long, segmented bodies with two pairs of legs per segment
13.
this phyla includes starfish
14.
aquatic animals that have antennae, chewing appendages and 5 pairs of legs
15.
animals that have a spinal chord
16.
a skeleton on the inside of a body, like humans
17.
arranging things into categories or groups according to shared characteristics
18.
the science of defining and naming groups of organisms
19.
a system used for identifying objects, using a series of paired descriptions to choose from
20.
developed the classification system we use today to classify living things
21.
the largest taxon... includes 3 classifications of living things
22.
the second largest taxon... includes 6 classification groups
23.
taxonomic level that includes groups such as Echinodermata and Chordata
24.
considered to be "true" bacteria
25.
single-celled organisms that live in extreme environments
26.
a kingdom that includes single-celled organisms such as amoeba
27.
a kingdom that includes mushrooms and mold
28.
humans are included in this kingdom
