Term
What is the function of the mantle in Molluscs? |
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Definition
| Specialized tissue that secretes a shell. |
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Term
| What does the visceral mask contain in molluscs? |
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Definition
| Reproductive system, most of the digestive system structures, and the excretory system |
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Term
| Describe how a squid moves. |
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Definition
| Expels water from mantle cavity through a ventral funnel to quickly propel itself forward. The funnel direction can be altered to all squid to change direction quickly. |
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Term
What are the three layers of mussels and clams (class bivalvia)? |
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Definition
Periostracum--outer layer Prismatic--middle layer Nacreous--inner layer |
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Term
What is the function of labial palps? |
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Definition
| Manipulating lips--the region of the mouth used to bring food in. |
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Term
[image] Know where the mantle, foot, mouth, gills, and eight plates are. What is the phyla and class of this chiton? |
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Definition
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Term
[image] Know where the foot, gills, labial palps, and mouth region are located. What is the phyla and class of the mussel? |
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Definition
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Term
[image] What are these? What phyla and class are they located in? |
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Definition
Scaphopod Phylum Mollusca Class Scaphopoda |
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Term
[image] What is the phylum and class of these land slugs? |
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Definition
| Phylum Mollusca Class Gastropoda |
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Term
[image] What is this? What phylum and class is this organism in? |
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Definition
Squid Phylum Mollusca Class Cephalopoda |
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Term
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Definition
| Extreme form of segmentation. |
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Term
| Does the mussel have an open or closed circulatory system? How can you tell? |
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Definition
| Open--heart expels blood into a sinus |
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Term
[image] Know reproductive organs, espophagus, aortic arches, crop, gizzard, intestine. What is this organism, phyla? |
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Definition
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Term
[image] What is this organism and the phyla? |
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Definition
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Term
What is the function of the two external suckers on leeches? |
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Definition
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Term
| How is a leech different from a polychaete? |
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Definition
| Leeches have a clitellum present. Polychaete marine worms have two sexes. Leeches have reduced segmentation. Leeches have two suckers. |
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Term
[image] What is organism and phylum? |
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Definition
Polychaete Marine Worm Phylum Annelida |
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Term
| What is the purpose of the earthworm's clitelllum? |
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Definition
| Secretes mucus to hold mating earthworm's together. Forms "cocoon" around earthworms during mating. |
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Term
| What is probably the key evolutionary innovation responsible for the success of arthropods? |
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Definition
| Jointed/chitinous exoskeleton. |
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Term
| What is the significance of the phylum onychophora? |
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Definition
| Displays characteristics intermediate in form between Annelida and Arthropoda, evolutionary link between the two phyla. |
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Term
| What are some disadvantages of exoskeltons? |
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Definition
| Limit size (must molt) and limited barrier to gas exchange. |
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Term
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Definition
| Dramatic change in body form that is post-embryonic. |
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Term
[image] What is this and what is the function? Where is it found? |
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Definition
Gastric mill--mechanical digestion Crayfish |
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Term
[image] Know eye, carpace, cephalothorax, abdomen, telson, book gills, leg, chelicerae, mouth, genital operculu, gill opercula, and anus. What is this organism, phylum, and class? |
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Definition
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Term
[image] What is this organisms phylum and class? |
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Definition
| Phylum Arthropoda Class Arachnida |
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Term
| To which class do barnacles belong in Phylum Arthropoda? |
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Definition
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Term
| What function does the statocyst provide to crayfish? |
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Definition
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Term
| What phylum, sub-phylum, and class does the millipede belong to? How many legs does it have per segment? |
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Definition
Phylum Arthropoda Sub-Phylum Uniramia Class Diplopoda. Four legs per segment. |
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Term
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Definition
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Term
What Phylum, Sub-Phylum, and Class do centipedes belong to? How many legs per segment do centipedes have? |
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Definition
Phylum Arthropoda, Sub-Phylum Uniramia, Class Chilopoda. Two legs per segment. |
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Term
| What are the three regions of a grasshopper body? |
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Definition
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Term
[image] What order is this organism in? |
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Definition
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Term
[image] What order is this organism in? |
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Definition
Grasshopper--Order Orthoptera |
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Term
[image] What order is this organism in? |
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Definition
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Term
[image] What order is this organism in? |
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Definition
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Term
[image] What order is this organism in? |
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Definition
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Term
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Definition
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Term
Does class chilopoda have four legs per segment? |
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Definition
| No...they are centipedes, only two legs per segment. |
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Term
| What is the irridescent inner layer of a mollusc shell known as? |
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Definition
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Term
What is meant by the term uniramous appendage? |
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Definition
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Term
The less dramatic metamorphosis (in terms of morphological change) is called? |
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Definition
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Term
What are the two elements of adaptive significance of metamorposis in insects? |
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Definition
| Associated with becoming reproductively active and searching for mates. Also reduces competition betweeen life stages. |
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