(no subject)
Im in sixth period.
Friday is senior skip day. I want to hang out with just sierra. All day. And do something fun. But I dont know if that'll happen. We'll see.
Hmmm... Im bored. Blah Blah Blah. Okay.
This link is just for my homework thing. Pay no mind to it.
http://web.ask.com/redir?u=http%3a%2f%2ftm.wc.ask.com%2fr%3ft%3dan%26s%3dj2%26uid%3d042F2C5B0F8ED3614%26sid%3d1EE024EF8264CFF14%26qid%3dD0173CAD2C47B845ABA2A5E76E181FED%26io%3d0%26sv%3dza5cb0de6%26o%3d0%26ask%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26uip%3dc7a47f56%26en%3dte%26eo%3d-100%26pt%3dCniderians%2bQuiz%26ac%3d3%26qs%3d0%26pg%3d1%26ep%3d1%26te_par%3d192%26te_id%3d%26u%3dhttp%3a%2f%2fhighered.mcgraw-hill.com%2fsites%2f0072852909%2fstudent_view0%2fchapter7%2fcniderians_quiz.html&bpg=http%3a%2f%2fweb.ask.com%2fweb%3fq%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26o%3d0%26page%3d1&q=what+does+the+greek+term+%22cnidaria%22+mean%3f&s=j2&bu=http%3a%2f%2fhighered.mcgraw-hill.com%2fsites%2f0072852909%2fstudent_view0%2fchapter7%2fcniderians_quiz.html&qte=0&o=0&abs=Cniderians+Quiz+(See+related+pages)+1.++What+does+the+Greek+term+%26ldquo%3bcnidaria%26rdquo%3b++mean%3f++Coelenterata%3f+2...&tit=Cniderians+Quiz&bin=&cat=wp&purl=http%3a%2f%2ftm.wc.ask.com%2fi%2fb.html%3ft%3dan%26s%3dj2%26uid%3d042F2C5B0F8ED3614%26sid%3d1EE024EF8264CFF14%26qid%3dD0173CAD2C47B845ABA2A5E76E181FED%26io%3d%26sv%3dza5cb0de6%26o%3d0%26ask%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26uip%3dc7a47f56%26en%3dbm%26eo%3d-100%26pt%3d%26ac%3d24%26qs%3d0%26pg%3d1%26u%3dhttp%3a%2f%2fmyjeeves.ask.com%2faction%2fsnip&Complete=1
Your Results:
1 NOT GRADED What does the Greek term “cnidaria” mean? Coelenterata?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Cnidaria: a stinging thread. Coelenterata: hollow gut.
2 NOT GRADED What are the defining characteristics of the Phylum Cnidaria?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Secretion of complex intracellular organelles called cnidae (nematocysts); planula larvae.
3 NOT GRADED What type of symmetry do cnidarians exhibit?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Radial.
4 NOT GRADED Are cnidarians diploblastic or triploblastic?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Diploblastic.
5 NOT GRADED What is mesoglea? function?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Gelatinous layer between the epidermis and the gastrodermis. Plays roles in digestion, nutrient transport and storage, wound repair, and antibacterial defense.
6 NOT GRADED What are “cnidae”?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Organelles secreted within cnidoblasts (nematoblasts) and discharged out of the cell.
7 NOT GRADED What are the types/functions of cnidae? Which type is the most widespread?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Specialized for wrapping around small objects, sticking to surfaces, penetrating surfaces, or secreting proteinaceous toxins. Function in food collection, defense, and locomotion (to some extent). Most widespread: nematocysts (stinging).
8 NOT GRADED What are the disadvantages of not having an anus? (Disadvantages of having a gastrovascular cavity or coelenteron with only one opening.)
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
All undigested food passes out through the same opening through which the food entered. Cnidarian must expel wastes before ingesting more food.
9 NOT GRADED Describe the nervous system of cnidarians.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Network of nerve cells and their processes, which synapse on one another.
10 NOT GRADED What are epitheliomuscular cells? nutritive-muscular cells? what other types of cells are present in the body wall?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Epitheliomuscular cells: ectodermal contractile cells. Nutritive muscular cells: gastrodermal (endodermal) contractile cells; capture and digest small food particles. Other types of cells: cnidocytes, interstitial cells, mucous gland cells.
11 NOT GRADED What are the 4 classes of the Phylum Cnidaria?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Scyphozoa, Cubozoa, Hydrozoa, Anthozoa.
12 NOT GRADED What does the name “scyphozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"Cup animals"; "jellyfish".
13 NOT GRADED What is the defining characteristic of the Class Scyphozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Asexual reproduction by strobilation.
14 NOT GRADED What are the functions of the jellyfish sense organs: rhopalium, ocellus, statocyst?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Rhopalium: Complex club-shaped sense organ along the margins of the swimming bell of the jellyfish, containing ocellus (simple light receptor) and statocyst (balance organ).
15 NOT GRADED Describe the scyphozoan life cycle.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Planula, scyphistoma, strobila, ephyra.
16 NOT GRADED What does the name “cubozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Cubozoa = "cube animals"; common name = box jellyfish or sea wasp (cubomedusae).
17 NOT GRADED What are the defining characteristics of the Class Cubozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Medusa with boxlike body; rhopalia bear complex, lensed eyes.
18 NOT GRADED How do cubozoans differ from “true jellyfish” (scyphozoans)?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Swimming bell curves inward at lower edge, restricting opening, increasing force of water being expelled; polyp stage does not strobilate; complex nervous system and eyes; more venomous neurotoxin.
19 NOT GRADED What does the name “hydrozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"water animals"; hydroids.
20 NOT GRADED What are the defining characteristics of the Class Hydrozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Gastrodermis lacks nematocysts; nematocysts only in epidermis; acellular mesoglea; polyp and medusa stages.
21 NOT GRADED What are the 3 major orders of the Class Hydrozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hydroida, Siphonophora, Hydrocorallina (or Milleporina)
22 NOT GRADED How do hydromedusae differ from scyphomedusae?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hydromedusae have a velum, a shelf of tissue extending inward from the edge of the swimming bell; scyphomedusae lack a velum.
23 NOT GRADED Explain the life cycle of Obelia.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Planula larva --> polyp --> asexual reproduction --> colony --> gastrozooids bud off medusae --> sexual reproduction --> eggs and sperm --> planula larva
24 NOT GRADED What organisms are in the Order Siphonophora? Are they solitary or colonial?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Siphonophones, including the Portuguese man-of-war (Physalia). Colonial.
25 NOT GRADED What are hydrocorals?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Colonial cnidarians with a substantial calcareous skeleton, including fire coral (Millepora), with numerous potent dactylozooids with nematocysts. Not true corals.
26 NOT GRADED What does the name “anthozoa” mean?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"flower animals"
27 NOT GRADED What are the defining characteristics of the Class Anthozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
No medusae; no operculum and cnidocil on nematocyst; mitochondrial DNA circular (linear in other cnidarians); siphonoglyph (ciliated groove) in wall of pharynx; coelenteron partitioned by mesenteries/septa.
28 NOT GRADED What animals are included in the Subclass Hexacorallia?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Sea anemones, stony corals, corallimorphs, zooanthids, cerianthids, black corals.
29 NOT GRADED What are the characteristics of the hexacorallians?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Tentacles around the mouth in multiples of 6; 6 pairs of primary mesenteries; 1 pair of siphonoglyphs.
30 NOT GRADED Distinguish between hermatypic and ahermatypic corals. What is the role of zooxanthellae in reef growth?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hermatypic: reef-building corals, with zooxanthellae. Ahermatypic: not reef-building; no zooxanthellae. Zooxanthellae supplement the nutrition of the coral, recycle the coral's wastes, and increase calcification by precipitating out CaCO3.
31 NOT GRADED What animals are included in the Subclass Octocorallia?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Sea rods, sea whips, sea fans, soft corals, sea pens, sea pansies, organ-pipe coral.
32 NOT GRADED What are the defining characteristics of the octocorals?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Polyps with 8 tentacles and 8 complete mesenteries.
33 NOT GRADED Define pinnules, axial rod, gorgonin.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Pinnules: lateral outfoldings on the tentacles. Axial rod: internal support rod, composed of protein (gorgonin).
34 NOT GRADED Why are octocorals a potential source of effective anticancer agents?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Tissues contain fatty-acid metabolites that protect the octocoral from predation and overgrowth; some of these chemicals kill mammalian tumors.
----------------------------------------------------------------------
Friday is senior skip day. I want to hang out with just sierra. All day. And do something fun. But I dont know if that'll happen. We'll see.
Hmmm... Im bored. Blah Blah Blah. Okay.
This link is just for my homework thing. Pay no mind to it.
http://web.ask.com/redir?u=http%3a%2f%2ftm.wc.ask.com%2fr%3ft%3dan%26s%3dj2%26uid%3d042F2C5B0F8ED3614%26sid%3d1EE024EF8264CFF14%26qid%3dD0173CAD2C47B845ABA2A5E76E181FED%26io%3d0%26sv%3dza5cb0de6%26o%3d0%26ask%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26uip%3dc7a47f56%26en%3dte%26eo%3d-100%26pt%3dCniderians%2bQuiz%26ac%3d3%26qs%3d0%26pg%3d1%26ep%3d1%26te_par%3d192%26te_id%3d%26u%3dhttp%3a%2f%2fhighered.mcgraw-hill.com%2fsites%2f0072852909%2fstudent_view0%2fchapter7%2fcniderians_quiz.html&bpg=http%3a%2f%2fweb.ask.com%2fweb%3fq%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26o%3d0%26page%3d1&q=what+does+the+greek+term+%22cnidaria%22+mean%3f&s=j2&bu=http%3a%2f%2fhighered.mcgraw-hill.com%2fsites%2f0072852909%2fstudent_view0%2fchapter7%2fcniderians_quiz.html&qte=0&o=0&abs=Cniderians+Quiz+(See+related+pages)+1.++What+does+the+Greek+term+%26ldquo%3bcnidaria%26rdquo%3b++mean%3f++Coelenterata%3f+2...&tit=Cniderians+Quiz&bin=&cat=wp&purl=http%3a%2f%2ftm.wc.ask.com%2fi%2fb.html%3ft%3dan%26s%3dj2%26uid%3d042F2C5B0F8ED3614%26sid%3d1EE024EF8264CFF14%26qid%3dD0173CAD2C47B845ABA2A5E76E181FED%26io%3d%26sv%3dza5cb0de6%26o%3d0%26ask%3dwhat%2bdoes%2bthe%2bgreek%2bterm%2b%2522cnidaria%2522%2bmean%253f%26uip%3dc7a47f56%26en%3dbm%26eo%3d-100%26pt%3d%26ac%3d24%26qs%3d0%26pg%3d1%26u%3dhttp%3a%2f%2fmyjeeves.ask.com%2faction%2fsnip&Complete=1
Your Results:
1 NOT GRADED What does the Greek term “cnidaria” mean? Coelenterata?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Cnidaria: a stinging thread. Coelenterata: hollow gut.
2 NOT GRADED What are the defining characteristics of the Phylum Cnidaria?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Secretion of complex intracellular organelles called cnidae (nematocysts); planula larvae.
3 NOT GRADED What type of symmetry do cnidarians exhibit?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Radial.
4 NOT GRADED Are cnidarians diploblastic or triploblastic?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Diploblastic.
5 NOT GRADED What is mesoglea? function?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Gelatinous layer between the epidermis and the gastrodermis. Plays roles in digestion, nutrient transport and storage, wound repair, and antibacterial defense.
6 NOT GRADED What are “cnidae”?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Organelles secreted within cnidoblasts (nematoblasts) and discharged out of the cell.
7 NOT GRADED What are the types/functions of cnidae? Which type is the most widespread?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Specialized for wrapping around small objects, sticking to surfaces, penetrating surfaces, or secreting proteinaceous toxins. Function in food collection, defense, and locomotion (to some extent). Most widespread: nematocysts (stinging).
8 NOT GRADED What are the disadvantages of not having an anus? (Disadvantages of having a gastrovascular cavity or coelenteron with only one opening.)
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
All undigested food passes out through the same opening through which the food entered. Cnidarian must expel wastes before ingesting more food.
9 NOT GRADED Describe the nervous system of cnidarians.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Network of nerve cells and their processes, which synapse on one another.
10 NOT GRADED What are epitheliomuscular cells? nutritive-muscular cells? what other types of cells are present in the body wall?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Epitheliomuscular cells: ectodermal contractile cells. Nutritive muscular cells: gastrodermal (endodermal) contractile cells; capture and digest small food particles. Other types of cells: cnidocytes, interstitial cells, mucous gland cells.
11 NOT GRADED What are the 4 classes of the Phylum Cnidaria?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Scyphozoa, Cubozoa, Hydrozoa, Anthozoa.
12 NOT GRADED What does the name “scyphozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"Cup animals"; "jellyfish".
13 NOT GRADED What is the defining characteristic of the Class Scyphozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Asexual reproduction by strobilation.
14 NOT GRADED What are the functions of the jellyfish sense organs: rhopalium, ocellus, statocyst?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Rhopalium: Complex club-shaped sense organ along the margins of the swimming bell of the jellyfish, containing ocellus (simple light receptor) and statocyst (balance organ).
15 NOT GRADED Describe the scyphozoan life cycle.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Planula, scyphistoma, strobila, ephyra.
16 NOT GRADED What does the name “cubozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Cubozoa = "cube animals"; common name = box jellyfish or sea wasp (cubomedusae).
17 NOT GRADED What are the defining characteristics of the Class Cubozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Medusa with boxlike body; rhopalia bear complex, lensed eyes.
18 NOT GRADED How do cubozoans differ from “true jellyfish” (scyphozoans)?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Swimming bell curves inward at lower edge, restricting opening, increasing force of water being expelled; polyp stage does not strobilate; complex nervous system and eyes; more venomous neurotoxin.
19 NOT GRADED What does the name “hydrozoa” mean? common name of class?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"water animals"; hydroids.
20 NOT GRADED What are the defining characteristics of the Class Hydrozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Gastrodermis lacks nematocysts; nematocysts only in epidermis; acellular mesoglea; polyp and medusa stages.
21 NOT GRADED What are the 3 major orders of the Class Hydrozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hydroida, Siphonophora, Hydrocorallina (or Milleporina)
22 NOT GRADED How do hydromedusae differ from scyphomedusae?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hydromedusae have a velum, a shelf of tissue extending inward from the edge of the swimming bell; scyphomedusae lack a velum.
23 NOT GRADED Explain the life cycle of Obelia.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Planula larva --> polyp --> asexual reproduction --> colony --> gastrozooids bud off medusae --> sexual reproduction --> eggs and sperm --> planula larva
24 NOT GRADED What organisms are in the Order Siphonophora? Are they solitary or colonial?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Siphonophones, including the Portuguese man-of-war (Physalia). Colonial.
25 NOT GRADED What are hydrocorals?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Colonial cnidarians with a substantial calcareous skeleton, including fire coral (Millepora), with numerous potent dactylozooids with nematocysts. Not true corals.
26 NOT GRADED What does the name “anthozoa” mean?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
"flower animals"
27 NOT GRADED What are the defining characteristics of the Class Anthozoa?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
No medusae; no operculum and cnidocil on nematocyst; mitochondrial DNA circular (linear in other cnidarians); siphonoglyph (ciliated groove) in wall of pharynx; coelenteron partitioned by mesenteries/septa.
28 NOT GRADED What animals are included in the Subclass Hexacorallia?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Sea anemones, stony corals, corallimorphs, zooanthids, cerianthids, black corals.
29 NOT GRADED What are the characteristics of the hexacorallians?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Tentacles around the mouth in multiples of 6; 6 pairs of primary mesenteries; 1 pair of siphonoglyphs.
30 NOT GRADED Distinguish between hermatypic and ahermatypic corals. What is the role of zooxanthellae in reef growth?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Hermatypic: reef-building corals, with zooxanthellae. Ahermatypic: not reef-building; no zooxanthellae. Zooxanthellae supplement the nutrition of the coral, recycle the coral's wastes, and increase calcification by precipitating out CaCO3.
31 NOT GRADED What animals are included in the Subclass Octocorallia?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Sea rods, sea whips, sea fans, soft corals, sea pens, sea pansies, organ-pipe coral.
32 NOT GRADED What are the defining characteristics of the octocorals?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Polyps with 8 tentacles and 8 complete mesenteries.
33 NOT GRADED Define pinnules, axial rod, gorgonin.
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Pinnules: lateral outfoldings on the tentacles. Axial rod: internal support rod, composed of protein (gorgonin).
34 NOT GRADED Why are octocorals a potential source of effective anticancer agents?
Your Answer: 1
Feedback: A correct answer to this question will include the following information:
Tissues contain fatty-acid metabolites that protect the octocoral from predation and overgrowth; some of these chemicals kill mammalian tumors.
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