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17 Cards in this Set
- Front
- Back
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4 characteristics of animals? |
Multicellular, heterotrophic, eukaryotic, cell membrane |
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What is an invertebrate? |
No backbone |
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4 characteristics if cordates? |
Gill slits, dorsal-hollow nerve cord, notocord, tail beyond anus |
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Main groups of vertebrates? |
Fish->amphibians->reptiles->birds/mammals |
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What is homeostasis? |
Internal balance |
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Ex. Of negative feedback |
Blood sugar rises->insulin rises->makes glucacon |
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Difference between endo and exo skeleton? |
Exo->outside endo->inside |
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How do flatworms, bugs, fish and us get oxygen? |
Fw: diffusion, bugs: air passages, fish: gills, us: lungs |
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Which Nitrogen waste do we use? |
Urea, fish: ammonia, desert rats: uric acid |
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Advantage of sexual vs. asexual reproduction? |
Genetic diversity |
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What is an organ? Tissue? |
Group of relates tissues working together, group if related cells working together |
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Difference between radial or bilateral? |
Radial is circle, bilateral is symmetrical |
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4 kinds of cells in a sponge? |
Digestive cells, spiccual makers, coanicites, gametes |
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3 body/organ systems Niclarian??? |
Muscles, disgestive, nervous system |
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Mesoderm |
Muscular, skeletal, reproductive, circulatory systems |
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3 stages of development if embryo? |
Zygote, blastula, gastula |
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What is cephalization? |
Concentratiom of nerve cells and sense organs at the anterior end |
