WorksheetsSuccession and Levels of Organization
Total questions: 10
Worksheet time: 5mins
As 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?
A newly formed volcanic island
A temperate forest that has never been cleared by logging
A field that is regularly mowed
An agricultural field that has not been plowed for one year
Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heal?
cells and tissue
cells and organ system
organ system and organism
tissue and organ system
Which 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.
No differences in species diversity exist because both ecosystems initially lack living organisms.
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 space.
Species diversity is much greater in the ecosystem undergoing primary succession because the lack of soil provides a greater area for organisms to claim niches.
The 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—
decreased species diversity
repeated habitat destruction
succession after a fire
tree-leaf replacement after a storm
A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?
Organism, community, population, ecosystem
Organism, population, community, ecosystem
Population, organism, ecosystem, community
Population, organism, community, ecosystem
The 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?
insects
lichens
grasses
deciduous trees
Enchanted 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?
Open oak woodland
Mesquite grassland
Floodplain
Granite rock
The diagrams show some of the levels of biological organization. In what order are the levels in the diagram?
population- community- ecosystem
organism- community- population
organism- population- community
ecosystem- population- community
Surtsey 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?
III, I, II, IV
II, IV, I, III
IV, III, I, II
I, II, IV, III
The table shows some observations made by four students during a field trip to a nature area. Which student made observations of a community of organisms?
Student 2
Student 3
Student 4
Student 1
