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Plans/Strategies
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| Question | Answer |
|---|---|
| List 2 traits of animals | Heterotrophic Complex Multicellular organism |
| What is a bauplan? | the body-plan and limits of the body (Ex: a pencil is designed to write- not fly) |
| Radial Symmetry | There is only oral aboral axis and any number of planes |
| What are benefits to radial symmetry? | Equally defended from all sides Can eat from any direction Easier regeneration |
| What are the plane options for a bilaterally symmetrical organism | Lateral vs medial Dorsal vs ventral |
| Define Diploblastic | Only ectoderm and endoderm |
| Define Triploblastic | Has all three germ layers |
| What animals will have a body cavity? | ONLY triploblastic animals |
| Define body cavity | fluid-filled space between the gut and body wall |
| How does a hydrostatic skeleton work? | Muscles act against body fluids and each other (Ex: spider) |
| How does a rigid skeleton work? | Different hard parts provide structure and muscle attachment points to act as a base for locomotion |
| What is the difference between a complete and incomplete bouplan? | Complete (through) will have separate openings for food and waste Incomplete (blind) will only have one opening that everything enters and exits |
| Define extracellular digestion | Cells secrete to digest |
| Define intracellular digestion | Cells phagocytosis materials |
| What is the other name for suspension feeding? | Filter feeding |
| How does deposit feeding work? | Taking organic material off of or out of the substrate |
| Define herbivory | Eating autotrophic matter |
| What is the difference between carnivory and scavenging | Carnivory is eating a live heterotroph Scavenging is eat a dead heterotroph |
| What do Mechanoreceptors do? | Motion, detect heat, pain, gravity |
| What do chemoreceptors do? | Responsible for smell, taste, pain |
| What are photoreceptors responsible for? | Detecting light and pain |
| Define fragmentation | body falls apart and each part grown a new animal |
| Define fission | Animal pinches itself into 2 pieces and becomes 2 animals |
| Define Budding | growing a new part of the body that pinches of and detaches |
| Define parthenogenesis | making an egg that doesn't require fertilization because it enter meiosis |
| Define holoblastic cleavage | cleaving all the way through the cell because yolk is evenly distributed |
| Define meroblastic cleavage | partially cleaving due to a thick yolk in one area |
| Define coeloblastula | hallow center called a blastocoel filled with fluid |
| Define stereoblastula | solid and filled with cells |
| Define discoblastula | forming a disc on top of the yolk |
| Define periblastula | meroblastic cleavage that makes cells form all around the yolk like a perimeter |
| what is invagination? | a portion of cells fold in to create the gut |
| What is ingression? | cells migrate to for the gut by pinching off |
| wWhat is epiboly | smaller cells with less yolk move around the embryo to create a covering sheet that becomes ectoderm |
| True or false: Larva can look the same or different from the adult stage | FALSE Larva must look significantly different from the adult stage and require a metamorphosis to become an adult |
| What is an R-selected strategy? | lots of kids and little parental care |
| What is a K-selected strategy? | fewer kiddos and lots of parental care |
Created by:
EEYancey
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