EOC Review - Ecological Succession B.11B
Quiz by Biology - Texas Education Agency
High School
Biology(2017)(ARCHIVED)
Texas Essential Knowledge and Skills (TEKS)
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- Q 1/12Score 0Surtsey is an island located south of Iceland. The island was formed by a volcanic eruption and first appeared in 1963. The table below contains descriptions of changes in the population and diversity of species on Surtsey. Which of these lists the descriptions in the correct order of ecological succession on Surtsey?29II, IV, I, IIII, II, IV, IIIIV, III, I, IIIII, I, II, IV
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- Q1Surtsey is an island located south of Iceland. The island was formed by a volcanic eruption and first appeared in 1963. The table below contains descriptions of changes in the population and diversity of species on Surtsey. Which of these lists the descriptions in the correct order of ecological succession on Surtsey?II, IV, I, IIII, II, IV, IIIIV, III, I, IIIII, I, II, IV60sBIOL.11b
- Q2The graph shows the basic changes in a forest community after a disturbance occurred. The information shown in the graph suggests that the changes in the forest community were caused by -succession after a firerepeated habitat destructiondecreased species diversitytree-leaf replacement after a storm60sBIOL.11b
- Q3Hydrothermal vents form deep in the ocean when iron-rich magma is released from openings on the seafloor. These vents spew extremely hot water (400°C) mixed with methane and sulfur. Bacteria that thrive in this hostile environment form the base of a food chain that leads to colonization by tube worms, mussels, and many other life-forms. When a hydrothermal vent becomes inactive and cold, the bacterial community that lives in the hot fluid methane and sulfur dies out. Which organisms most likely succeed the original community in this ecosystem?Ocean mammals that tolerate cold and act as top predators in the food chainFish that do not need oxygen for cellular respirationGiant kelp that use sulfur in photosynthesisCold-tolerant bacteria that feed on sulfur and iron in the vents60sBIOL.11b
- Q4The graph below shows the changes in the number of species in an ecosystem. Which event was most likely the cause of the changes in species diversity in this ecosystem?A flash floodA migration of locustsA large volcanic eruptionA small tornado60sBIOL.11b
- Q5As ecosystems move through the stages of succession, the populations of organisms in them change. Which of the following describes the stage of succession likely to have the most species diversity?An agricultural field that has not been plowed for one yearA field that is regularly mowedA temperate forest that has never been cleared by loggingA newly formed volcanic island60sBIOL.11b
- Q6How do an increase in the organic matter in soil and an increase in soil depth affect the population of plants in an area?Mosses replace flowering plantsLarger plants become the dominant organismsGrasses become diseasedNitrogen-fixing bacteria kill young trees60sBIOL.11b
- Q7During ecological succession, how does the growth of young hardwoods affect the organisms living in an ecosystem?All of the aboveThe trees provide shelter and food for a variety of mammals, insects, and birdsIn autumn, falling leaves provide a source of energy for decomposers such as fungiGrasses and low shrubs are unable to obtain the amount of light they need to survive, so there are small numbers of them60sBIOL.11b
- Q8Which statement best describes the differences in species diversity between an ecosystem beginning the process of primary succession and one beginning the process of secondary succession?Species diversity is greater in the ecosystem undergoing secondary succession because the soil already contains seeds and spores of various species.Species diversity is much greater in the ecosystem undergoing primary succession because that ecosystem is experiencing a longer period with a lack of competition for spaceSpecies diversity is much greater in the ecosystem undergoing primary succession because the lack of soil provides a greater area for organisms to claim nichesNo differences in species diversity exist because both ecosystems initially lack living organisms60sBIOL.11b
- Q9An estuary collects sediments from the ocean and rivers that feed into it. The sediments swirl around and then settle to form a mudflat. Eel grass is then established on the mudflat. The ecosystem changes over time and ultimately develops into a salt marsh that contains mangrove trees. Which of the following is likely NOT involved in this example of ecological succession?The rotting remains of plants add to the fertility of the soilThe soil becomes so fertile that eel grass is replaced by other plant speciesThe concentration of salt becomes so high that all plant life is destroyedThe roots from plants help stabilize the sediment, keeping it in place60sBIOL.11b
- Q10The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a moraine, which life-forms will help create the soil by breaking down bare rock?Deciduous treesLichensInsectsGrasses60sBIOL.11b
- Q11A small town in the piney woods of East Texas has a soccer field composed of native grasses. The soccer field is mowed once a week. What effect does continual mowing have on the ecology of the field?Mowing increases the number of species found in the field.Mowing maintains a low species diversity by inhibiting further succession.Mowing increases the likelihood of nonnative species displacing native species.Mowing causes different types of communities to form across the field.60sBIOL.11b
- Q12Enchanted Rock State Natural Area is located in Central Texas. Enchanted Rock is a dome of granite. The area contains four easily identifiable communities. The table describes characteristics of each type of community in the area. A student studying primary succession should focus on which of these communities?Granite rockMesquite grasslandOpen oak woodlandFloodplain60sBIOL.11b
