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35 Cards in this Set
- Front
- Back
nematocysts
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Small capsules that contain a toxin which is injected into prey or predators.
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posterior end
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The end of an animal that contains the tail.
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nervous system
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A system of sensitive cells that responds to stimuli such as sound, touch, and taste.
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ganglia
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masses of nerve cell bodies
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hermaphrodite
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Possessing both the male and female reproductive organs.
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mantle
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A sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration.
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What phyla are sponges in? |
Phylum Porifera
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How many layers of cells do sponges have? |
Two |
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What is the purpose of the epidermis layer of cells? |
Outer layer that protects |
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________________ the jellylike substance that separates the epidermis fromthe inner cells.
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Mesenchyme
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A sponge is supported by a network of ___________ that are found mostly inthe mesenchyme. (feels spiny and hard)
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spicules
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Some sponges are supported by a tough web of protein called_______ .(feels soft)
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Spongin
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Sponges eat ______, ______, and _______ in the water.
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algae, bacteria, and organic matter
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Sponges use canals and cavities that are lined with collar cells. (whichare also called __________.)
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choanocytes
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Sponges have no organs, but have _______________________________________________________.
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specialized cells that take care of digestion
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Sponges reproduce by _______ (asexually)
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budding
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If they live in a large colony, it is known as a _______ ______
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coral reef
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Three examples of Phylum Cnideria
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jellyfish, sea anemones, and hydra
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What are the 2 basic forms of Phylum Cnideria
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Polyp and Medusa |
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The earthworm has a clitelliumaids ___________in and helps distinguish between head and tail. It is closest to the anterior end
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reproduction
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Earthworms do not have a _______, but have 2 main blood vessels.
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heart
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The earthworms a dorsal blood vesseland ventral blood vesselare linked by a series of strong muscled vessels known as the ______ _______ .
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aortic arches
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Earthworms are able to breathe through their ______.
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skin
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In order to be able to absorb oxygen and release Carbon dioxide, the worm's epidermis is covered with a moist layer called the ______ .
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cuticle
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A earthworm _________ will if they dry out. |
suffocate
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Phylum Annelida-Segmented Worms such as _______ and ______
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earthworms and leeches
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Earthworms are .
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hermaphrodictic
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Phylum Platyhelminthes- Flatworms Name three examples.
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plantarian, tape worms and flukes |
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Phylum Platyhelminthes have a more complex _____ ______ than the earthworms
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nervous system
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In order to asexually reproduce, a planarian simply tears itself inhalf. The two halves each _________ their missing half.
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regenerate
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Phylum Nematoda- Roundworms are______ _______ worms
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tiny cylindrical
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Phylum Nematoda live in _______ environment.
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every
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Phylum Mollusca includes _____,_____,_____, and _______
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Clams, oysters, snails, squids
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Most members have a _____ , a ____ , a ______ , a foot, and aradula.
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mantle, shell, visceral hump
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The snail is a _______ while clams are bivalves
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univalve
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