Earth's Ecosystems
Food Chains, Webs, & Pyramids
Comparing Ecosystems
Changes in Ecosystems
Miscellaneous
100
What is an ecosystem? Include populations, communities, abiotic, and biotic factors?
What is the living things and nonliving things in an area. Populations are all organisms of the same kind that live in a particular area and communities are all the populations that live together in the same place. Abiotic factors are nonliving parts of an ecosystem like sunlight and water. Biotic factors include living things such as how many producers there are.
100
________________________________ is a relationship between two kinds of organisms that lasts over time.
What is symbiosis.
100
Fill in a detailed description for each biome: DESERT TUNDRA TAIGA RAINFOREST DECIDUOUS FOREST GRASSLANDS
What is answers may vary.
100
Provide 3 reasons why organisms become extinct.
What is habitat loss, climate change, hunting.
100
Food chains in an ocean ecosystem begin with
What is plankton.
200
How does the water cycle work?
What is water on the Earth's surface evaporates, condenses, and forms clouds. Then, the water in clouds returns to the surface as precipitation.
200
Give an example of parasitism, commensalism, and mutualism.
What is answers may vary.
200
What is plankton, nekton, & benthos?
What is plankton floats freely in water, nekton are fish, turtles & whales, and benthos are scavengers or decomposers.
200
A plant that appears soon after a natural disaster in an area is a
What is pioneer species.
200
The transformation of land into a desert is
What is desertification.
300
What roles do animals and plants play in the oxygen-carbon dioxide cycle?
What is Plants produce oxygen and consume carbon dioxide. Animals produce carbon dioxide and consume oxygen.
300
What is the difference between a food chain and a food web?
What is a food chain shows only one way in which energy flows through some populations in an ecosystem. A food web shows the ways the multiple food chains overlap.
300
___________________________ are water ecosystems that are located where rivers flow into oceans.
What is estuary.
300
What causes changes in ecosystems over time?
What is climate and weather changes, human interaction.
300
What might happen if natural predators, such as coyotes, were driven from their habitats?
What is Populations that were prey for predators would increase; populations might become too large and exhaust their food sources.
400
What role do certain types of bacteria play in the nitrogen cycle?
What is Two types of bacteria help cycle nitrogen. One type of bacteria fixes nitrogen so that plants can absorb it. Another type of bacteria releases nitrogen back into the air as dead organisms are decomposed.
400
Fill in pyramid diagram with correct labels: A. DECOMPOSER C. TOP PREDATOR E. PRIMARY CONSUMER B.SECONDARY CONSUMER D. PRODUCER F. TERTIARY CONSUMER
What is see board.
400
A condition that controls the size or growth of a population is called a ____________________________________ _________________________________.
What is limiting factor.
400
Temperature and precipitation are two factors that determine an area’s
What is climate.
400
A species whose numbers are so reduced that it is in danger of extinction is considered _________________.
What is endangered.
500
78% of the atmosphere is _________________.
What is nitrogen.
500
An organism’s role in its ecosystem is its _____________________________.
What is niche.
500
Give one example of an abiotic and biotic limiting factor:
What is abiotic: sunlight, biotic: number of producers
500
Animals that eat the remains of dead animals are
What is scavengers.
500
What are homologous structures?
What is similar body parts in different organisms that serve different needs.
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