Commensalism Mutualism Parasitism Competition Predation _________ 1. Although termites can physically chew and ingest wood, they are incapable of chemically digesting the wood. Inside of the termite is an intestinal flagellate that secretes the enzymes necessary for the termite to digest the wood. The flagellates live only inside in the hindgut of termites. _________ 2. Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whale. _________ 3. Tapeworms, for example, live inside the intestines of humans and farm animals. They obtain digested food and shelter from their hosts. Hence, the hosts are likely to suffer from low nutrition. _________ 4. The stork uses its saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork. _________ 5. Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first, and then honey guide birds eat. _________ 6. A remarkable 3-way symbiosis appears to have evolved between an ant, a butterfly caterpillar, and an acacia tree in the American southwest. The caterpillars have nectar organs which the ants drink from, and the acacia tolerates the feeding caterpillars. The ants appear to provide some protection for both plant and caterpillar. _________ 7. Mistletoe is a plant that people hang above doorways at Christmas-time. Before it gets picked and hung inside it grows by living off of other plants. Mistletoe grows on woody plants, taking nutrients and moisture from them. It also “strangles” it—reducing the nutrients that the plant can take in.
- Commensalism
- Mutualism
Parasitism - Competition
- Predation
_________ 1. Although termites can physically chew and ingest wood, they are incapable of chemically digesting the wood. Inside of the termite is an intestinal flagellate that secretes the enzymes necessary for the termite to digest the wood. The flagellates live only inside in the hindgut of termites.
_________ 2. Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whale.
_________ 3. Tapeworms, for example, live inside the intestines of humans and farm animals. They obtain digested food and shelter from their hosts. Hence, the hosts are likely to suffer from low nutrition.
_________ 4. The stork uses its saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.
_________ 5. Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first, and then honey guide birds eat.
_________ 6. A remarkable 3-way symbiosis appears to have evolved between an ant, a butterfly caterpillar, and an acacia tree in the American southwest. The caterpillars have nectar organs which the ants drink from, and the acacia tolerates the feeding caterpillars. The ants appear to provide some protection for both plant and caterpillar.
_________ 7. Mistletoe is a plant that people hang above doorways at Christmas-time. Before it gets picked and hung inside it grows by living off of other plants. Mistletoe grows on woody plants, taking nutrients and moisture from them. It also “strangles” it—reducing the nutrients that the plant can take in.
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