Term
| Name three Poriferan cell types |
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Definition
| choanocytes, porocytes, amoebocytes[image][image] |
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Term
| Name three Poriferan clades |
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Definition
| Demosponges, Calcareous Sponges, [image]Glass Sponges[image] |
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Term
| Name three Poriferan body forms. |
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Definition
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Term
| What protistan gave rise to sponges? |
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Definition
| Choanoflagellates, or collar flagellates |
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Term
| What's the name of a sponge's a) cavity and b) opening? |
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Definition
| a) spongocoel and b)osculum[image] |
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Term
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Definition
| A protein that demosponges use for skeleton[image] |
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Term
| Name three ways protozoans move. |
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Definition
| 1) flagellum 2) cilia 3) cytoplasmic streaming |
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Term
| Name two parasitic protistan clades. |
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Definition
| 1) Trypanosoma 2) Apicomplexa |
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Term
| Name two plankton clades and state of what their tests are made. |
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Definition
1) foraminiferans: calcareous test
2) radiolarians: silica (glass) test |
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Term
| Name three synapomorphies of Ciliates. |
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Definition
| 1) covered by cilia 2) two nuclei: macro/micro 3) contractile vacuoles to eliminate water |
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Term
| How do Paramecium reproduce? |
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Definition
1) asexually with fission: they divide into two
2) sexually with conjugation |
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Term
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Definition
| Involves + and - mating types, they come together and exchange DNA to become genetically different. They then separate and clone themselves as genetically different organisms. |
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Term
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Definition
| Through an oral groove, which pinches food into a vacuole. |
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Term
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Definition
| Protozoan with cilia bunched together to form stiff cirri for walking-like locomotion. |
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Term
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Definition
One of two stalked protozoans
Forms colonies |
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Term
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Definition
Stalked ciliate
Numerous macronuclei
Can have chloroplast |
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Term
| What are some traits of radiolarians? |
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Definition
planktonic
siliceous test
stiffened pseudopods used for feeding
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Term
| What are some traits of Foraminifera? |
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Definition
planktonic
porous calcium carbonate test with multiple chambers
stiff pseudopods for feeding and locomotion |
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Term
| What are some traits of Amoeboids? |
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Definition
move by cytoplasmic streaming w/ pseudopods
engulf prey to form food vacuole
some are parasitic |
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Term
| What are some traits of Trypanosomes? |
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Definition
Parasites in the bloodstream. Cause African sleeping sickness and Chaga's disease.
Rapidly evolve to overcome your immune system. |
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Term
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Definition
Worked w/ Paramecium.
Invented competitive exclusion principle.[image] |
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Term
| What is the competitive exclusion principle? |
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Definition
| The more similar the niches of two species, the less likely their coexistance. |
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Term
Name and describe two ways animals compete for a limited resource. |
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Definition
1) interference competition - one keeps the other from getting access to a resource
2) explotation competition - one uses the resource faster than the other. |
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Term
| Define interference competition. |
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Definition
| To actively interfere with an opponents use of a resource by guarding resource or chasing off your competitor. This is done by establishing a certain territory or dominating your opponent is a social heirarchy. |
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Term
| Define exploitation competition, name an organism showing it, and name who studied it. |
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Definition
| To scramble for resource and consume it faster than your competitor. Not aggressive, just more efficient use of explotation abilities. Studied in Paramecium by Gause. |
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Term
| What protozoan eats another protozoan? |
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Definition
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Term
| Name two stalked ciliates. |
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Definition
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Term
| What is Plasmodium and where would you find it? |
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Definition
| Blood parasite causing malaria. |
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Term
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Definition
produced for a-sexual reproduction in some fresh water sponges
a group of cells covered by glass spicules that can develop into a new sponge |
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Term
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Definition
| gelatinous glue that holds colonies of choanoflagellates together |
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Term
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Definition
| Cellular adhesion molecules in the plasma membranes of metazoans |
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