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Ebio 3850 Lab Practical: Physical Stuff/Non Taxonomy
Terms in this set (43)
What are the main cells that create water flow and filter food?
(Grantia Section slide question)
Picture of Grantia Cross Section Slide
Table of Sponges
Why is the crab carrying those sponges?
Cnidarians develop through three life stages:
Polyp, medusa, planula
(Depending on the type of cnidarian, the "dominant" form will either be a polyp or medusa)
Flat worm labeling
Tape worm Parts:
Scolex and Proglottid
Attaches the adult tapeworm to the walls of the intestine
Produces thousands of eggs once detached from the adult.
Basic pattern of trematode life:
egg, miracidium, sporocyst, redia, cercaria, metacercaria, adult (order is chronological)
Parts of California horn snails (Doubt we need to know it but jsut in case)
What are the ecological roles of earthworms in soils?
Loosen ground for plants roots to spread
Help with decomposition
Helps aerate soil
Parts of the earthworm
Parchment worm movement and diagram *
What groups of animals (besides annelida) have a trocophore larva?
Cephalic region of Clam worm*
Clam worm dissection
How does feather duster worm feed?
Filter feeding through water collumn with help of fan like body shape
Spiny tongue made of chitinous teeth; found in majority of mollusks, its shape and morphology can be unique for every genus, making it a useful tool for systematic studies. The radula can give hints on the diet of the mollusk, as different shapes will be used based on vegetarian vs carnivore feeding. It also has high plasticity and can vary even further based on whatever kind of food is available!
What group of mollusks don't have a radula?*
Bivalve Dissection (Clam)**
Which body structure do the eyes of scallops grow on?
There are two siphons, one long and one short, which one is the excurrent siphon? Why?**
a tube through which water exits the mantle cavity of a bivalve
Squid Dissection **
Number of tagmata: spider/member of chelicerates
2 prosoma and opisthosoma
Number of tagmata: Myriapods (millipedes etc)
2 head and trunk
Number of tagmata: Lobster/crustaceans
2 head and pereon
Number of tagmata: Ant/Insects
3 head, thorax, and abdomen
Crustacena bodies are usually made up of....
Head, thorax, and abdomen
Crustacena specimens table **
Chelicerates have two sets of modified appendages
Chelicerae and pedipalps
Fang like appendages, and behind them are the pedipalps
Behind the chelicerae, are six segmented limbs used mostly for handling food.
Nearly _____ species of arthropod are classified in the myriapoda, "the many legged ones"
How many legs do centipedes have? how many legs per segment?**
One leg per segment
How many legs per segment do millipedes have (with exception of the first few segments)?
2 legs per segment
All echinoderms are defined by their "spiny skin", or epidermis, which surrounds an mesodermal skeleton composed of calcium carbonate plates, called ______.
Ossicles, These plates may be fused together or held together by connective tissue.
Echinoderm unique system
Water vascular system; network of fluid canals is used for locomotion, breathing, and sensory perception.
Entrance to water vascular system is called...
Madeporite (located externally or internally as in sea cucumbers)
Other defining organ of echinoderms are...
Tube feet; operate on hydraulic pressure
Apullae and podia on starfish tube feet slide
Ampullae: contain both circular and longitudinal muscles
Podia: contain only longitudinal muscles
Why would the ampullae of tube feet contain circular muscles?
To be able to hold onto surfaces
What is the function of pedicellariae of the orange sea star?
To keep organisms off of the starfish i.e. bacteria alga etc
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