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Aminals
Bio yuck
| Question | Answer |
|---|---|
| what are the characteristics of all chordates? | Notochord, a dorsal nerve chord, pharyngeal slits and a postanal tail |
| which groups of organisms make up the phylum chordata? | urochordata (tunicates) Cephalochordata (lancelets) and Vertebrata (Vertebrates |
| What are the characteritics of all fishes? | gills, Single loop virculation, and a vertebral column (backbone) |
| How does the blood flow through the fishes | It flows heart, gills, body, heart |
| How does te blood flow of a fish compare to the flow of a frog, reptile, or mammal? | Fishes get their oxygen from gills, amphhibians have weak lungs aided by through skin, reptiles and mammals use lungs |
| How has the hearts structure changed with the evolution of each of the vertebrate classes? | 2C (fish) > 3C (amphibians) > 3-4 C (reptiles) > 4 C (mammals) |
| How do salt water fishes and fresh water fishes balence their salt content? | They use their gills and nephrons (what make up kidneys) |
| Describe the differences between reproductive methods in fish | mostly external |
| what is the importance of the lateral line system in fish? | it is a specialized sensory system. |
| What are the differences in buoyancy in bony fish and cartilagionus fish? | Bony fish have a swim bladder; a gas sac that regulates bouyancy. A cartiligionus fish dosen't, but has an oily liver to compensate. |
| what are the three living classes of fish, names , examples, structural differences | AGNATHA (agnanthans) Jawless fishes without scales hagfish and lampreys CHONDRICHTHYES catriliginous fish OSTECICHTYES bony fish |
| Which classes are endothermic? | reptilia SNAKES |
| which classes are exothermic? | aves BLUEBIRDS, mammalia KANGAROOS, chondrichthyesSHARKS osteichthyesTROUT and amphibia FROGS |
| what is the benefits and drawbacks to endo vs ecto therms | Endo therms mean that they have a more stable metabolism, and that they can live in a wider variety of climates. but endotherms have to eat alot. |
| Whare are the characteristics of amphibians? | legs, lungs, double loop circulation, partially divided heart, cutaneous respiration |
| How do amphibians breathe? | With lungs, but aided through skins |
| Why ist he exchange of gases important in animals | it allows oxygen to get to the cells/ cellular respiration/ metabolism |
| What are the differences between the larval stage of frog development and the adult stage, including food requirements? | young = herbivore, aquatic, single loop, gills. Adult = carniverius, terrestiral, double loop, lungs |
| How are reptiles adapted tlo life on land? | They have watertight skin, strong lungs, and watertight eggs |
| Why is external fertilixation more common in water than in terrestrial enviornments? | The water provides a medium for the fertilization |
| what are the characteristics of birds | feathers, strong lightweight skeleton, endothermic, completely divided ventricle, highly efficient lungs |
| How do birds, mammals, and reptiles differnt in care of their young? | Reptiles eat their babies, birds go bulemic for their babies, and mammals stick to them like glue. |
| what is claws fingernails and hair made of? | karotin |
| what are the 3 types of mammals, where do they live, and how do they nuture their young? | MONOTREMES, such as platapi, lay leathery shelled eggs and have a cloaca. MARSUPIALS, such as kangaroos, have young born young, incomplete except for front limbs, and live mostly in aultralia. PLACENTAL like humans, have young develop in uteris (placenta) |
| What is the importance of the development of the backbone and the internal skeleton of vertebrates. | a carilinegous structure was not strong enough to combat gravity on land |
| When did fish first evolve? | 500 mya |
| What fish were the first fish? | agnanthans |
| what kind of bone did they have? | they had a backbone |
| how did the jaw evolve | they developed from gill arch supports made of cartilage |
| From what organism evolved the amphibians? | lobe-finned fishes |
| From what organism evolved the reptiles | amphibians |
| From what organism evolved the birds | dinosaurs (theropods) |
| From what organism evolved the mammals | endothermic reptiles called therapsids |
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avvajessic
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