Animals Review
-
Upload
marshall-jaidyn -
Category
Documents
-
view
17 -
download
2
description
Transcript of Animals Review
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
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
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
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
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
External Starfish Anatomy• Madreporite plate*
• Tube feet*
• Mouth*
• Spiny skin/Dermal spines
• Central disc
• Eye spots
• Anus
Internal Anatomy
• Stomach• Digestive gland• Gonads• Ring canal• Radial canal• Ampullae – connect to…• Dermis
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?)
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
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
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
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?
Clam Internal AnatomyAdductor musclesFootVisceral massGillsMantleHeartGonadsStomachIntestinesMouth?
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
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
10. Holometabolous (complete) metamorphosis – egg, larva, pupa, adult
11. Hemimetabolous (incomplete) metamorphosis – egg, nymph, adult
12. Grasshoppers are…Hemimetabolous
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
Grasshopper Anatomy
• External anatomy only• Study your picture
Animal Kingdom Lab
• Didn’t get these recorded in gradebook – so please bring back Tuesday!
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