1. Cell Tissue Organ Adaptation Sexual Reproduction
The basic unit of structure and function in living things
Tissue
A group of similar cells that perform the same function
Organ
A structure of the body composed of different kinds of tissue
Adaptation
A behavior or physical characteristic that allows and organism to survive or reproduce in its environment
Sexual Reproduction
Reproductive process that involves two parents that combine their genetic material to produce a new organism different from both parents

2. Fertilization Asexual Reproduction Phylum Vertebrate Invertebrate
The joining of the sperm and egg
Asexual Reproduction
Reproductive process that involves one parent and produces offspring that are identical to the parent
Phylum
One of the major groups into which biologists classify members of a kingdom
Vertebrate
An animal that has a backbone
Invertebrate
An animal that does not have a backbone

3. Body plan with two halves that are mirror images
Bilateral Symmetry
Body plan with two halves that are mirror images
Radial Symmetry
The quality of having many lines of symmetry that all pass through a central point
Larva
The immature form of an animal that looks very different from the adult
Cnidarian
An invertebrate animal that uses stinging cells to capture food and protect itself
Polyp
Cnidarian body plan with a vase like shape, usually adapted for life attached to an underwater surface

4. Medusa Colony Coral Reef Parasite Host
Cnidarian body plan having a bowl like shape and adapted for free swimming life
Colony
A group of individual organisms living or growing together
Coral Reef
A diverse environment named for the coral animals that make up its stony structure
Parasite
An organism that benefits by living on or in a host organism in a parasitic interaction
Host
The organism that a parasite or virus lives in or on

5. Free Living Organism Scavenger Anus Closed Circulatory System
An organism that does not live in or on other organisms
Scavenger
A carnivore that feeds on the bodies of dead organisms
Anus
The muscular opening at the end of the rectum through which waste material is eliminated from the body
Closed Circulatory
System
A circulatory system in which blood moves only within a connected network of tubes called blood vessels