Chestnut blight is a type of fungus that affects the American chestnut tree. The fungus wiped out a large portion of the trees. What type of density-dependent factor would the fungus be considered? diseases and parasites physiological change predation competition
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- Mycorrhizal fungi live in the soil and interact with the roots of plants. Essentail nutrients (e.g. nitrogenous compounds) are taken from the soil by the fungi and transferred to the plant roots. The fungi extract carbohydrates from the plant roots. What type of interaction is occurring? Group of answer choices commensalism predation competition mutualismSeveral kinds of symbiotic relationships involve a fungus and a photoautotroph. Give two different examples of this kind of relationship. For the two examples, you choose, explain whether each relationship is parasitism, commensalism, or mutualism. Are either of the species interactions in either of your two examples beneficial for or detrimental to humans? Explain.Respond to the following statements in reference to the five kinds of species interactions listed below. An example of this interaction is that between an epiphyte and its host. In this interaction between two species, both species are harmed to some degree. In this interaction, both species benefit. In this interaction, one individual or species is usually killed while the other benefits by eating it. In this interaction, one species is harmed but usually not killed, to the benefit of the other that lives on or in it. a. Competition b. Predation C. Mutualism d. Commensalism e. Parasitism
- Lichen are a symbiotic relationship between a fungus and a photosynthetic species, either a cyanobacteria or an alga. Both the fungus and the photosynthetic partner benefit from the relationship. Together, they can live in environments where neither could live alone. Lichen is an example of... O Competition Mutualism O Parasitism PredationSome plants have fungi associated with their root systems. The plant provides sugars for the fungus; the fungus helps absorb water and dissolved nutrients for the plant.What is the interaction between the plant and the fungus an example of? 1.Mutualism2. Commensalism3. Parasitism4.PredationCommensalism 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.…
- A hypothetical protist, Protista biologica, can become inhabited by a bacterium. This bacterium receives nutrition from the protist host and produces a dangerous toxin to the host. Which choice given below best describes this relationship? mutualism parasitism symbiosis Numbers 1 and 3 can describe this relationship Numbers 2 and 3 can describe this relationship Numbers 2 and 4 can describe this relationshipMatch the following situations with their correct interactions. Choose between mutualism, commensalism and parasitism. Leaf cutter ants cultivate a fungal garden to feed the fungus to the ant larvae. Answer Tongue-eating louse attach to a fish’s tongue and feed on the fish blood while acting like a normal tongue. Answer Barnacles on a whale are exposed to new food sources while living on the whale’s backs. Answer Japanese spider crabs have algae living on their shell for camouflage. Answer Mites attach to beetles for easy transportation from one location to another. AnswerIn which of the following species is temporary exponential growth seen? invasive fish insects trees
- Flagellate protozoans live in the guts of termites. The flagellates break down the cellulose that the termites eat, and both organisms benefit from the resulting nutrients. This relationship between protozoan and termite is an example of- mutualism parasitism equilibrium commensalismPlasmodium is a vector for mosquitos. It is a protozoan that is the causal agent of malaria, which is responsible for killing as many 855,000 people in 2013, the majority of them being children. Populations of mosquitos are strongly influenced by the availability of standing water for egg-laying and larval development. How might mosquito density, and thereby human mortality, be affected by patterns of rainfall?Background: An area has two different Anopheles species, species A and species B. Both can vector Plasmodium, although Plasmodium develops best and is transmitted best by species B. Species A is dominant because its larvae outcompete species B in the main shared breeding sites, small lakes, and ponds. Therefore the population of B is currently small. The small lakes and ponds are also the source for the main food source in the region, fish, grown in fish farms. There is grazing land, but other than chickens, the local population does not have livestock. Species A is largely endophilic, species B is exophilic. In other localities, species A and B will also feed on cattle, and B appears to prefer cattle. Both species like to roost during the hot day in rock overhangs and small caves. The national malaria control agency sends in a new person to develop a malarial control strategy. (S)he recommends draining the lakes and ponds, and intensive house spraying. Discuss the pros and cons of…
