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Related Flashcards
Cards In This Set
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 What are the animal characteristics? |
1. Eukaryotic2. Heterotrophic3. Multicellular4. No cell walls 5. Motile6. Diploid somatic cells7. Diplontic life cycle8. Most animals have tissues
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Eukaryotes must have these characteristics..
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-nucleus-Membrane-bound organelles
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Describe heterotropic
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"different feeding" -Used pre-formed organic material as energy and carbon source-modes of feeding-predators-herbivores-filter feeders-parasitesdetritivores-omnivores
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Do most plants have internal or external digestion?
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Internal- Most use internal processes to break down food and most have internal gut that is continuous with the outside environment
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What does having multiple cells means?
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-cells become more specialized to carry out specific functions-organisms can grow in size (and have more complex functions)
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If you are one large cell what problem do you encounter and why?
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You have a diffusion problem due to low SA.V rationote: materials can diffuse throughout smaller cells more quickly
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What are the structural support?
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Hydrostatic Skeleton: muscles contract against fluid-filled cavityExoskeleton:Non-living covering that does not grow with the animal Endoskeleton: Internal supportVertebrates:-Living tissueInvertebrates-Non-living, CaCO3
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Animals are...
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 Diplontic-Most of the life-cycle is in the diploid plaseNote: Haploid Gametes are tiny and matrotrophic |
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.....cells are diploid(2n)......(n)
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....Somatic cells.....Gametes
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Motility provides what?
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Reduces competition and enhances genetic diversity. e.g. barnicles are animals, they are motile as larva
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What are tissues?
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Groups of similar cells organized into a functional unit
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What are the different tissues and what are they used for?
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-Muscular-for movement-Nervous- transmitting electrical signals or protecting them-Connective-bone,cartilage,blood,fat(adipose)-Epithelial- line outer and internal surfaces
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What functions as an organ?
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Tissues can function as organs to complete more complex tasks(ex: digestion,absorption)
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Name some of the characteristics of animals
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-about 35 phyla-About 1 million species-97% are invertebrates
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Animals are monophyletic. What does that mean?
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Most of their characteristics are shared with other groups but no groups share all of these characteristics
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