| Term | Definition |
|---|
| Fertilization | Union of sperm and egg producing a zygote |
| Gastrula | Hollow ball of cells that has folded in on itself created three layers |
| Gastrulation | The process of the blastula folding in on itself forming the gastrula which all tissue develops from. |
| Ectoderm | Forms the skin and nervous system |
| Endoderm | Forms GI tract and digestion organs |
| Mesoderm | Forms muscle, circulatory, excretory, and respiratory |
| Asymmetry | Irregular body shape example: sponge |
| Bilateral symmetry | Distinct head and tail, equal right and left sides examples: worms, cray fish |
| Exoskeleton | Hard outside skeleton made of chitin |
| Endoskeleton | Internal structure of bones or cartilage |
| Invertebrates | Lack of backbone |
| Vertebrates | Has a backbone (fish, amphibians, reptiles, birds, mammals) |
| Morula | Mass of cells after zygote multiplies many times |
| Blastula | Hollow ball of cells |
| Planarian | Free living flat worm |
| Gastropod | Mollusk which has one or no shell. |
| Filter Feed | How do bivalves feed? |
| Mantle | What part of the mollusk secretes the shell? |
| Radula | Part of a snail that tears and scrapes for food |
| Pinworms | Most common parasitic worms in children. |
| Appendages | Parts of Arthropods that functions in sensing, walking, feeding, and mating |
| Trichina worms | Worms that can infect pork. |
| Radial | A pizza resembles what kind of symmetry? |
| Gastrovascular cavity | A cnidarian digests it's food in a ____________________. |
| Planarian | Which worm has a pharynx, tube which extends from its mouth? |
| Four | How many pairs of walking legs to spiders have? |
| One | How many body sections does a tick have? |
| Antennae | The appendage which senses vibrations, chemicals and food |
| Cephalopd | The group of mollusk that's most intelligent. |
| Medusa | Sexual body form of a cnidarian |
| two compound and three simple | Grasshoppers have how many compound and simple eyes |
| incomplete metamorphosis | Egg, Nymph, Adult |
| Collar cells | Cells of a sponge similar to a flagellated protist |
| Filter feed | How do sponges feed? |
| Crustacea | Class of crabs, lobsters, shrimps and pill bugs |
| Chelicerae | Spiders bite with what appendages? |
| Gills | Aquatic arthropods like crabs use what organ to breathe? |
| Insects | What group of arthropods have 3 pair of legs and 3 body sections |
| External | Fertilization that occurs outside the body...perhaps in water. |
| Spicules | Skeleton of a sponge |
| Tube feet | A sea star uses what to grasp and hold tightly to surfaces? |
| Polyp | Cnidarian body form with mouth and tentacles upward. |
| Radial | Starfish and sand dollars have what type of symmetry? |
| Jointed appendages | The most distinguishing characteristics of all arthropods. |
| Molts | A new exoskeleton will grow underneath the old one before it ___________. |
| Earthworm | Type of animal that has a gizzard used for grinding soil, segmented with hair-like setae. |
| Mollusk | Type of animal that has a muscular foot and mantle. |
| Leech | Type of animal is a segmented worm that is an external parasite. |
| Sea star | Type of animal that has a spiny skin with tube feet. |
| Scolex | The head of a tapeworm. |
| Proglottid | The body section of a tapeworm. |
| Annelida | Phylum for earth worms and leeches (segmented worms) |
| Arachnida | Class name for spiders, scorpians, ticks and mites |
| Arthropoda | Phylum name for all animals with an exoskeleton made of chitin` |
| Cnidaria | Phylum name for corals and jellyfish. |
| Cnidaria | Phylum name for all organisms that have stinging cells |
| Diplopoda | Class name for millipede which are non-poisonous and herbivorous. |
| Porifera | Phylum name for sponges which is called a pore bearer. |
| Mereostomata | Class name for horseshoe crabs |
| Chilopoda | Class name for centipedes which are poisonous and carnivorous. |
| Chephalopoda | Class name for squids and octopus |
| Round worms | Heart, pin and hook worms are all examples of _______ worms. |
| Nematoscysts | When cnidarians are touched their tentacles a barb will discharge from stinging cells called _________. |
| Animalia | Heterotrouphs, eukaryotic, and multicellular describe all organisms in the Kingdom ___________. |
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