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How has the invasion of zebra mussels in the Hudson River affected 1 biotic or abiotic factor in the river ecosystem?
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- A species of barnacle may be able to exploit a large volume of habitat but due to competition from other species this barnacle is confined to a smaller area within the larger volume. This area where the barnacle is acutally found is its __________. A) working space B) crevice C) fundamental niche D) realized niche E) potential nicheIf you were to remove one of these species, which of these would cause a great impact on the majority of the species? a) phytoplankton b) herring c) humpback whale d) krillArthrepeds Nematodes Athropods Binds Nematodes Plants Pretea Aimal Bacteria In the food web the amount of matter A) remains constant. B) remains unstable. is all converted to heat. D) increases with each trophic level cells the mitation will be passed onto the organism's offspring
- 4)What effects does removing sea anemones from a coral reef ecosystem have on the types of fish species present? a)Population b)Community c)EcosystemHow will the loss of kelp likely change the ecosystem?One direct effect of the zebra mussel invasion was a decrease in the cloudiness of the water. How did this affect species in the Hudson River ecosystem?
- Which among A-D is not a step in the eutrophication process? A) O rapid growth of algae and cyanobacteria B) O influx of excess nutrients to an aquatic environment, particularly nitrogen and phosphorous C) O heterotrophic, aerobic respiration D) O eventual increase in the numbers of fish and other aquatic life due to the rise m oxygen concentration of the water E) OA-D are all a part of eutrophication1)The video discusses some of the factors that allowed lionfish to expand throughout the Atlantic region. Which of the following reasons were given for why the lionfish population has been able to expand so rapidly? choose all that apply a)Lionfish out-compete native fish for food b)Atlantic predatory fish don't eat lionfish c)Lionfish are able to breed more frequently than native fish d)The Atlantic region has fewer parasites that attack lionfish e)None of theseWhy the population of birds are getting declined in an area where DDT had been used extensively?
- Please answer fast 3) There are very few native reptile and amphibian species in Maine. What abiotic factor limits their ability to survive there? A) There is not ample water in Maine. B) There is too much competition in Maine. C) The temperature in Maine is too high. D) temperature in Maine is too low. 5) In the Galapagos, the medium ground finch, Geospiza fortis, and large ground finch, Geospiza magnirostris, both live on the island Daphne Major. Scientists have studied these species and recorded detailed information, which includes observations about their diets and beak sizes. After a long period of drought, there were very few seeds available for both species to eat, and many of the finches died. The scientists who studied these birds observed that the average size of G. fortis beaks decreased dramatically during the years after the drought, whereas the average size of G. magnirostris beaks increased. G. fortis became specialized in eating very small seeds, whereas G. magnirostris…13. Aphids (bug that feeds by sucking sap from plants) make a secretion called honeydew that ants feed upon, and the ants protect the aphids from predators. A) commensalism B) mutualism C) predation D) Parasitism 14. A glacier has retreated from a valley in Glacier National Park, leaving a pile of rocks known as moraine. The type of succession expected in this ecosystem would be A) primary B) secondary C) transitional D) EquilibriumBiomagnification is the process by which the level of contaminants increase as they move upwards in a food chain. If bivalves in the Chesapeake Bay become contaminated from run-off, which organism will experience the highest level of contamination? a) Bivalves b) Sea duck c) Tundra swan d) Bald eagle