animals review
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Animals Review. For Test: *Animal Diversity Lab *Animal Dissections: - Starfish - Clam Grasshopper (studyguide only – no dissection) Expect to identify anatomy – study pictures and notes!. Starfish Questions. How does a starfish feed? Read figure 24 Kingdom: Animalia - PowerPoint PPT PresentationTRANSCRIPT
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Animals Review
For Test: *Animal Diversity Lab*Animal Dissections:
- Starfish- Clam
- Grasshopper (studyguide only – no dissection)
- Expect to identify anatomy – study pictures and notes!
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Starfish Questions
1. How does a starfish feed?- Read figure 24
2. Kingdom: AnimaliaPhylum: Echinodermata
3. 6 common echinoderms:Starfish, sea star, brittle star, sand dollar, sea
lily, sea cucumber, sea urchin4. 7000 species of echinoderms
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5. Live in marine benthic environments (typically salt water, in the bottom of the sea floor)
6. Triploplastic – having 3 germ layersWhere is the A) endo,
B) meso, C) ectoderm ?
7. A coelom = a true body cavity (lined with mesoderm)
8. Water vascular system – takes in water for movement, feeding (filter feeders!), respiratory and excretory
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9. Echinoderm = spiny skin10. Pedicellaria – pincer-like elements to ward
off ectoparasites (what are they…)10. Skeleton made of many plates called
ossicles, made of calcium carbonate11. No brain – a decentralized nervous system12. Regeneration – regrow limbs; will break off a
body part if attacked (lose a limb, save a life)13. Digestive organs: mouth, stomach, intestine,
anus
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14. Dioecious – each sex is separate organism, but can’t really tell sexes apart
15. Young starfish have bilateral symmetry; adults have radial symmetry
*Study the Starfish Anatomy Coloring Picture
*Starfish Lab – Know all the parts/structures and what they do/why they are important
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External Starfish Anatomy• Madreporite plate*
• Tube feet*
• Mouth*
• Spiny skin/Dermal spines
• Central disc
• Eye spots
• Anus
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Internal Anatomy
• Stomach• Digestive gland• Gonads• Ring canal• Radial canal• Ampullae – connect to…• Dermis
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Mollusk Questions:
1. Mollusk ex: snail, clam, slug, squid, octopus, oyster
2. Clam – AKA – Mussel3. All mollusks share 1 unifying characteristic – Soft bodied4. 4 Major regions – mantle, visceral mass, head,
food (Which did you see? What do they do?)
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5. Mantle – sheath of skin surround the space of the clam, attached to shell
6. Secretes for shell, houses respiratory organs (which are…?) and houses visceral mass
7. Visceral mass contains: Stomach, intestines, gonads, mouth8. Food is used for – locomotionOctopus/squid have siphon for jet propulsion
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9. Radula – toothed tongue for scraping food10. Open circulatory system – blood is not
contained in vessels but circulates via the heart through open sinuses
11. Gills – for breathing underwater12. Clams filter feed – water flows in past gills,
mouth; small particles swept into mouth13. Shells- formed by secretions of the mantle14. Shell’s inner nacreous layer – composed of
calcium carbonate, can form pearls
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15. Hermaphroditic – both sexes in 1 organism16. Octopus is able to learn and remember17. Mollusk senses: touch, taste, smell, sensing of
chemicals, sight18. Live in moist environments – marine or freshwater19. For food (calamari, escargot, oysters, scallops),
jewelry, medicine, also negative because they are invasive species – zebra and quagga mussels are invading Great Lakes
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Clam External Anatomy
Function of shell – protection, movementBivalve – two valves (two shells hinged
together)Oldest/newest part of shell? How do you know?How does it open/close?
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Clam Internal AnatomyAdductor musclesFootVisceral massGillsMantleHeartGonadsStomachIntestinesMouth?
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Grasshopper Questions
1. Phylum Arthropoda2. HUGE characteristic – Exoskeleton 3. Molting – shed exoskeleton periodically4. Jointed appendages on legs, mouth parts,
antennae5. Have bilateral symmetry (what have the other
organisms had?)6. Cephalization – development of distinct head
region
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7. Have a COMPLETE digestive system – beginning (mouth) and end (anus)
8. Arthropods are divided into 6 classes – LOTS of diversity in this phylum!
9. Arthropods are the most abundant phylum of the animal kingdom
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10. Holometabolous (complete) metamorphosis – egg, larva, pupa, adult
11. Hemimetabolous (incomplete) metamorphosis – egg, nymph, adult
12. Grasshoppers are…Hemimetabolous
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13. Beneficial contributions: pollinators, food source for birds/small mammals, vital part of healthy ecosystems (where in food chain?)
14. Harmful? – eat crops (locust swarms), spend lots of money on pesticides
15. There are 2.5 – 3 BILLION insects in the world, and most of them are BENEFICIAL
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Grasshopper Anatomy
• External anatomy only• Study your picture
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Animal Kingdom Lab
• Didn’t get these recorded in gradebook – so please bring back Tuesday!
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What to know: Animal Kingdom Lab
• Names of each phylum (or class) - goes with what kind of animal?– Ex: Phylum Platyhelminthes is commonly referred
to as what?– Flatworms
• Can go back to book (Ch 25.2) or online• Sheets on tables are in a powerpoint on wiki