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8 Cards in this Set
- Front
- Back
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List the methods used by animals to obtain small particles
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Cilia
Setae Mucus traps Flagella Specialised plates Tentacles |
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List the 3 processes typically involvled in filter feeding
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1. Utilising a water current to carry food particles
2. Filtering the suspended food particles from the water 3. Transporting collected food to the mouth |
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How does a sponge feed?
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Large opening (osculum) - water flow over causes a drop in pressure = Bernoullis effect
Water drawn in through small holes (ostia) - aided by cilia Collar cells (with flagella) - engulf food |
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How does a bivalve feed?
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Cilia on ctenidia create current
Laterofrontal cilia stick out – trap food These bend - transfer trapped food to mucus strands – moved to mouth KEY PAPER Beninger (2005) |
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How does a fanworm feed?
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Radioles
Cilia create water current Food trapped in mucus on radiole surface Different cilia transfer food to mouth |
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What are setae and how do animals feed using them?
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= thick bristle-like structures
Wafted around - food trapped Used by crustacea Located on different parts – antennae, mouth Examples - prawns and barnacles (legs), crab (mouth) |
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Descibe feeding in baleen whales.
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Baleen plates in gums along each side of the whale's upper jaw
Triangular shaped and arranged like teeth in a comb - inner edge is frayed -fringes form a dense mat inside the mouth Use these plates to strain food from the water Role of large tongue KEY PAPER Werth (2013) |
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How do flamingos feed?
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Adapted bill - upper thin and flat - like a lid
Lower is large and trough / or keel-shaped (filled with air spaces – floats) Tooth-like ridges on the outside of a flamingo's bill help filter food Rows of lamellae in mandibles - filter water - mesh together Role of tongue |
