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BIOLOGY
INVERTEBRATES TEST
| Question | Answer |
|---|---|
| Cells that contain a nucleus and membrane bound organelles are | eukaryotic |
| Animal Kingdom charactistics include | multicelluar, eukaryotic, heterotrophic, nutrition by ingestion |
| Aquatic animals that strain food from the water they live in are called | filter feeders, or suspension feeders |
| Symbiosis includes what 3 types of relationships? | parasitism, mutualism, commensalism |
| The upper of back side of an animal. | dorsal |
| The underneath or belly side of an animal. | ventral |
| The head end of an animal. | anterior |
| The rear end of an animal. | posterior |
| An animal that has distinct right and left sides shows what type of symmetry? | bilateral |
| An animal that shows no symmetry | asymmetry |
| An animal that has a body plan built around a cylindrical form with no right or left side shows what type of symmetry? | radial |
| The hollow ball of cells formed in the development of an embryo. | blastula |
| Which of the 3 germ layers in an animal embryo will develope the muscles, heart and blood vessels, the reproductive organs and the urinary tract? | mesoderm |
| Animals that are attached to one spot are said to be | sessile |
| Choanocytes, spicules, gemmules, are all associated with which Phylum? | Porifera |
| Sexual reproduction in the sponges includes what type of fertilization? | internal |
| What type of food getting do the sponges use? | filter feeding |
| What function do the flagella perform in the sponge's body? | keeps the water circulating |
| Cnidocytes are | stinging cells |
| The nematocysts are used to | defend the cnidarian and capture food |
| What are the 2 types of body forms in cnidarians? | polyp and medusa |
| What type of symmetry do the Cnidaria display? | radial in the polyp and medusa |
| Polyps are _______________ while the medusa are _______________. | sessile; free swimming |
| The planaria feeds by sucking food in it's digestive cavity with it's? | pharynx |
| The planaria use their __________ to detect light. | eyespots |
| If a parasitic flatworm lives in the gut of it's host, what body system will not be required? | digestive |
| The adult tapeworm uses what structures for attachment to the host's intestinal wall? | scolex with suckers and hooks |
| The tapeworm's body plan includes segements called ____________ that contain the reproductive structure. | proglottids |
| What type of reproduction occurs in the intermediate host of a parasitic flatworm? | asexual |
| Roundworms have a digestive system with ______________ openings. | 2 |
| Movement in a roundworm requires the use of the | hydrostatic skeleton |
| List 3 ways humans can become infected with roundworms. | drinking contaminated water, eating contaminated food, insect bites |
| We get trichinosis from | contaminated, undercooked pork |
| The organ in the earthworm's digestive tract that grinds food is | gizzard |
| The body wall of annelids is | segmented |
| Which phylum of worms has a true body cavity? | Annelida |
| In the annelids, what organ removes nitrogen containing wastes? | nephridia |
| Name the parasitic worm that is external. | leech |
| The bristles in an annelid are called? | setae |
| Name 2 ways that earthworms benefit the soil. | tunneling allows oxygen and water to reach plan roots; loosen soil |
| Which mollusk has a closed circulatory system? | cephalopods |
| Why do cephalopods need a closed circulatory system? | they are large, fast moving and require more oxygen where the bivalves and gastropods do not |
| The thin layer of tissue in mollusks that covers the body and secretes the shell. | mantle |
| The small tubes allowing water to enter and exit the mollusk's body. | siphon |
| The muscular foot of mollusks is modified into several shapes and functions in | movement |
| The appendages of arthropods are | jointed |
| The respiratory system of insects and some other arthropods is made up of tubules called | trachae |
| The trachae of arthropods is used to move _____________ throughout the body. | air |
| Where do we find the insects? | in most habitats on earth |
| Molting allows an arthropod to | grow |
| Arthropods are classified according to what 2 criteria? | segmentation and appendages(including mouthparts) |
| Which appendages are especially important in classification of arthropods? | mouthparts |
| Name 2 chelicerates. | spider, horseshoe crab |
| Which group of arthropods are the uniramians? | insects |
| Insects have _______ prs. of legs and spiders have _______ prs. of legs | 3;4 |
| What characteristic is common to arachnids and crustaceans? | both have a cephalothorax |
| Centipedes have _____pr legs per segment. | 1 |
| Millipedes have _____pr. legs per segment. | 2 |
| The ____________ eye is made up of more than one lens. | compound |
| Class Insecta has a body plan with ______ segments, the ________, ________, and the _______. | 3; head, thorax, abdomen |
| The stages of complete metamorphosis are | egg, larva, pupa, adult |
| The stages of incomplete metamorphosis are | egg, nymph, adult |
| In echinoderms, body parts are usually occurs in multiples of | 5 |
| The endoskeleton of an echinoderm is composed of | calcium carbonate |
| The hundreds of tiny suction cups on an echinoderm are called | tube feet |
| In the echinoderms, respiration, circulation, and movement are controlled by | the water vascular system |
| Which echinoderm resembles a crawling pickle? | sea cucumber |
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biobob
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