By Anna Malone and Natasha Prins

Natasha Prins and Anna Malone NP

Cnidarians Jellyfish Definition: An animal with a soft body and no bones. Body Systems: Radial Symmetry. Has a simple nervous system. Does not have a brain. Reproduction : Both sexually and asexually, the medusa releases sperm and egg cells into the water, where fertilization takes place. Food : Are Carnivorous. Sting their prey, and pull the prey in their mouth, wastes leaves through the mouth. Habitat: Most live in sea water, some live in freshwater. Predators: tunas, sharks, swordfish and some species of salmon Adaptations: Sting their prey. Shaped like umbrellas, sea anemonies like flowers, sometimes vases. NP

Sponges Example- Giant Cloud Sponge Definition: One type of animal that filters the water it lives in. Reproduction: Most sponges reproduce asexually, but if they find a mate the they reproduce sexually. Food: Sponges get food by filtering the water around them. Habitat: Sponges live in shallow ocean water. Predators: Sponge’s are food to sea urchins and sea stars. Fun facts: Scientists know of about 5,000 species of sponges, and are still learning about more. AM

Nematodes/Roundworms ascaris Definition: An animal, with a round tube like body, that has a digestive system with two openings. Body System: Has a Bilateral symmetry. Two nerve cords. No circulatory. IT has a mouth, pharynx, intestine anus. Reproduction: Has sex organs that enable it to reproduce sexually. Over 200,000 eggs can be deposited at once. Food: Two openings, one for the mouth, and one for getting rid of waste, have teeth to stab and suck juice. Some suck from plants. Eats diatoms, algae, fungi, bacteria, and other worms. Habitat: Live in many types of environments. Roundworms inhabit virtually every habitat in the seas. Predators: Tardigrades, turbellarians, enchytraeids, insects, mites, other nematodes, crayfish, flatworms, bacteria, fungi. Adaptations: Has a arrangement of muscles. An estimate of 650 people have a disease caused by roundworms. NP

Platyhelminthes-Flatworms Example- The Blood Fluke Definition- A flatworm has a flattened body and a digestive system with only one opening. Body Systems- Flatworms have a digestive and nervous system. They also have bilateral symmetry. Reproduction- Flatworms are sexual, the females lay eggs after sexual contact. Food- Flatworms eat already dead animals, such as, fish. Habitat- They live in freshwater-streams and lakes. Food- They are eaten by, diving beetles and tadpoles. Fun Fact- Their eyes are on the top of their head. AM

Echinoderms sea urchins Definition- It is an invertebrate that has a internal skeleton and spines that are part of their skin. Body Systems- They don’t have a brain or a nervous system to enable them to move or feed. They use their tube feet for moving and feeding. Reproduction- They are sexual, their fertilization is external, females release several million jelly coated eggs at a time. Food- each tube feet ends with a sucker to suck water, and other food. Two openings eats algae, kelp, decaying matter, dead fish, sponges, mussels, and barnacles. Habitat- they only live in the ocean. Predators- octopods, octopus, crabs, sunflower stars, sea otters, some birds, fish, wolf eels, and people. Adaptions- 700 different species of sea urchins. Uses the spines to protect itself. NP

Mollusks Garden Snails Definition: An animal with a soft body and no bones. Body Systems: They use their lungs to exchange gas, dry air, the muscle valve controls the opening and the closing of the entrance. They are bilateral symmetrical Reproduction: They reproduce sexually. When the eggs are fertilized they release the eggs and sperm into the water, the fertilized eggs develop into larvae. Mollusks lay up to 100 eggs. Food: Mollusks eat clams, they have a organ called a radula it is shaped like a tongue and coated with teeth. They have a digestive system with two openings. Habitat: They live in fresh water and on land. Predators: They are eaten by leeches, beetles and flies Adaptations: They have hard shells that not only protect their body it also grows inside of them NP

Annelids/Segmented Worms Example- Earth Worms Definition- Segmented Worms are worms whose bodies are made up of connected sections or segments. Body Systems- They have a circulatory system. Reproduction- These worms have both male and female parts so when they mate they both lay eggs. Habitat- Segmented Worms live underground in moist soil. Predators- They are eaten by blue jays, robins and other birds Fun Facts- Two sets of muscles enable the Segmented worm to move through the soil AM

Arthropods Example- Black Widow Spiders Definition- An Arthropod is an animal that has a jointed exoskeleton Body Systems- They have a digestive system with two openings, a brain, circulatory system, and their lungs are also called book lungs Reproduction- The females lay eggs after sexual contact Habitat- They live in warm environments. Problems/ predators-They are killed by pest control specialists, and humans Fun Facts- They grow new exoskeletons after they grow. They are the largest phylum known to mankind. AM

Resources HARCOURT SCIENCE TEXT BOOK NP

Resources Harcourt Science Book AM