SP 25 Unit 8 Exam Review

Which of the following correctly describes the relationship between an organism and the abiotic factors around them within a desert ecosystem?

• The desert is humid and allows for a wide variety of fungi

• High rainfall amounts increases the plant life in the area

• Sandy soil allows trees to grow very tall

• Low rainfall leads to efficient water storage.

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This image shows a group of Bison eating grass. How do the grass and bison depend on each other?

• Grass provides shade for bison during hot weather.
• Bison and grass have no interaction in their ecosystem.
• Bison avoid grass to prevent overgrazing.
• Bison eat grass for nutrition, while grass depends on the Bison for carbon dioxide.

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Which term is best defined as the all of the biotic and abiotic factors in an area?

• habitat
• ecosystem
• community
• population

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The picture shows a clownfish and a sea anemone. The clownfish uses the anemone for protection and food. The anemone is benefiting from the clownfish cleaning up any food scraps it leaves behind. Which statement below is true about this symbiotic relationship?

• the clownfish is a predator of the anemone
• the anemone does not benefit from the clownfish
• the two species compete for the same resources
• the two species rely on each other for survival by contributing essential functions

Match the following tropism to the benefit it provides for the plant.

• ensures plant gets nutrient and sunlight

• 
• allows the plant to anchor itslef

• 
• allows plant to maximize water intake

• 
• maximizes the plant's exposure to sun

• 

Place the following aadaptations in the biome that they would be most beneficial in.

Groups:

(a) Desert

,

(b) Rainforest

• storing water in body fat

• large leaves to maximize sunlight absorbtion

• being nocturnal to avoid sunlight

• burrowing during the day

• being bright colors to blend in

• tips of leaves shaped to help water drip off easily

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NGSS.MS-LS4-4

Some plant species have cones that only release the seeds when in contact with high temperatures, such as a forest fire. How would this adaptation help the plant reproduce?

• enhance water retention in the soil
• reduce seed dispersal distance
• increase competition with other plants
• take advantage of the nutrients in the soil and reduced population of other plants

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Which of the following would explain how an adaptation can occur within a population?

• an environmental change led to a sudden shift in behavior
• a mutation that lead to an advantageous trait was passed on through reproduction
• a trait that was always present became dominant
• a mutation that caused a harmful trait was eliminated

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NGSS.MS-LS4-4

Which of the following places the organisms in the correct order for the cycling of matter?

• plants, sun, large animals, small animals, insects, decomposers
• sun, insects, plants, small animals, large animals, decomposers
• sun, plants, insects, small animals, large animals, decomposers
• decomposers, large animals, small animals, insects, plants, sun

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Put these organisms in the correct order for a food chain that can be seen within the provided food web.

• mouse

• fox

• plants

• snake

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