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WorksheetsEcology and Population Dynamics
Total questions: 25
Worksheet time: 13mins
Which of the following would be an example of a biome?
A lake
Earth
Tropical Rainforest
A group of zebra
Which is a biotic factor?
soil
air
bacteria
water
As a population of a species increases within a territory, which of the following most likely also increases?
Immigration
Food supply
Carrying capacity
Competition
Which of the following represent abiotic factors that affect an environment?
Fish, trees, and bacteria
Alligators, ferns, and snakes
Temperature, wind, and soil type
Birds, mushrooms, and insects
A population is __________________.
a group of organisms of the same species, in the same place, at the same time.
a group of organisms of the different species, in the same place, at the same time.
an individual organism of the one species, in the same place, at the same time.
a group of organisms of the same species, in the different place, at the same time.
Which group is not represented in the food web?
producers
primary consumers
secondary consumers
decomposers
What do the arrows in the food chain indicate about the flow of energy in an ecosystem?
Energy is continuously recycled by the organisms in an ecosystem.
Energy flows in one direction in an ecosystem, from producers to consumers.
More of the available energy in an ecosystem is given to large animals than to small animals.
Organisms at the end of the food chain receive more energy than those at the beginning.
In this energy pyramid, which organism would most likely be in level 2?
bird
fox
caterpillar
tree
Suppose that a new predator of the rabbit migrated to this ecosystem. What is the most likely initial effect on the other organisms?
More competition among the mice for food
More competition among the hawks for food
Less competition among snakes for food
Less grass available for food
Which of these organisms would most likely be found at the bottom of a biomass pyramid?
giant squids
sand sharks
sea cucumbers
green algae
