A Populations of freshwater fish and aquatic plants are gradually replaced by populations of weeds and grasses as a pond fills with silt. B A terrestrial ecosystem is replaced by a freshwater ecosystem. C A marine ecosystem is replaced by a terrestrial ecosystem. D Populations of freshwater fish and aquatic plants die off as their habit becomes filled with silt. 7. Cowbirds do not their own nests, but rather they lay their eggs in the nests of other birds. When the eggs hatch, the cowbird young are then taken care of by the birds who built the nest, often at the expense of their own young. This relationship is an example of A parasitism B mutualism C predation D commensalism Organism Root Stem Leaf Reproductive Adaptation Adaptation Adaptation Adaptation A Water lily Roots and root hairs Stems bend with Stoma restricted to Seeds can float absent water flow upper surface of leaves B Bromeliad Aerial roots to Smooth and Large, broad leaves Animal pollinated absorb from the air leaves with drip tips allow water to runoff C Sagebrush 3 sets of to Stems store water Leaf hairs direct Seeds germinate in collect water sunlight away from response to rain leaf surface D Fescue Extensive roots Soft stems bend in Narrow leaves Wind pollinated survive fire and the wind prevent dessication grazing animals on the adaptations listed in the table above, which organism is best suited for life in the desert ecosystem? 8. A. Water lily B. Bromeliad C. Sagebrush D. Fescue 9. In an ecosystem, the simple food above shows the movement of matter and energy from one organism to the next. If disease reduced the number of organisms at the producer level, which other organism would feel the greatest effect? A the mouse because it is a producer B the mouse because it eats producers C the cat since it is a 2nd order consumer D the coyote because it is the top consumer in the food chain 10. The graph depicts the growth of a population of yeast cells over time. The horizontal line most likely represents A the limit of tolerance of the yeast cells to environmental conditions B the highest number of yeast cells the population can achieve C the carrying capacity of the environment population size of a predator which preys on the yeast C 11. Throughout the decade of the 1930’s, a series of severe dust storms blew across the prairie of the United States, causing extreme ecological and agricultural damage. Years of poor farming practices and drought resulted in the loss of tons of topsoil to
A Populations of freshwater fish and aquatic plants are gradually replaced by populations of weeds and grasses as a pond fills with silt. B A terrestrial ecosystem is replaced by a freshwater ecosystem. C A marine ecosystem is replaced by a terrestrial ecosystem. D Populations of freshwater fish and aquatic plants die off as their habit becomes filled with silt. 7. Cowbirds do not their own nests, but rather they lay their eggs in the nests of other birds. When the eggs hatch, the cowbird young are then taken care of by the birds who built the nest, often at the expense of their own young. This relationship is an example of A parasitism B mutualism C predation D commensalism Organism Root Adaptation Stem Adaptation Leaf Adaptation Reproductive Adaptation A Water lily Roots and root hairs absent Stems bend with water flow Stoma restricted to upper surface of leaves Seeds can float B Bromeliad Aerial roots to absorb from the air Smooth and leaves with drip tips allow water to runoff Large, broad leaves Animal pollinated C Sagebrush 3 sets of to collect water Stems store water Leaf hairs direct sunlight away from leaf surface Seeds germinate in response to rain D Fescue Extensive roots survive fire and grazing animals Soft stems bend in the wind Narrow leaves prevent dessication Wind pollinated 8. on the adaptations listed in the table above, which organism is best suited for life in the desert ecosystem? A. Water lily B. Bromeliad C. Sagebrush D. Fescue 9. In an ecosystem, the simple food above shows the movement of matter and energy from one organism to the next. If disease reduced the number of organisms at the producer level, which other organism would feel the greatest effect? A the mouse because it is a producer B the mouse because it eats producers C the cat since it is a 2nd order consumer D the coyote because it is the top consumer in the food chain 10. The graph depicts the growth of a population of yeast cells over time. The horizontal line most likely represents A the limit of tolerance of the yeast cells to environmental conditions B the highest number of yeast cells the population can achieve C the carrying capacity of the environment C population size of a predator which preys on the yeast 11. Throughout the decade of the 1930’s, a series of severe dust storms blew across the prairie of the United States, causing extreme ecological and agricultural damage. Years of poor farming practices and drought resulted in the loss of tons of topsoil to
category_5_ecology_a.docx