Domain 5 – Ecology: 15-Question Assessment

Energy from the sun can be used by ​ (a)   , which is why they are located at the bottom of the energy pyramid. They have the most available energy.

The amount of energy that transfers between levels is ​ (b)   percent. The other ​ (c)   percent is lost to the atmosphere as heat or is used during metabolism/digestion. For example, if there was 5,400 available kcalories at the producer level, then ​ (d)   kcalories would be available to the secondary consumers.

• producers
• 10
• 90
• 540
• 5,400
• 54
• 54,000
• consumers

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?

• The frogs make energy available to this ecosystem through the process of photosynthesis.
• The algae directly provide food for both the rotifers and the catfish.
• The green-backed heron provides energy for the mosquito larvae.
• The catfish population helps control the populations of water boatman and waterfleas.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Which of the following are missing from the food web shown above?

• producers
• decomposers
• omnivores
• carnivores

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NGSS.MS-LS2-3

Deforestation by burning has been described as a "double whammy" to the environment, meaning it has 2 negative impacts. Why is this description accurate? 

• Forest burning releases CO₂ while decreasing oxygen, which disrupts cycles
• Deforestation increases the amount of oxygen in the atmosphere, which depletes the ozone layer

• Forest clearing is often followed by land development, which often leads to increased noise pollution
• Deforestation increases the number of plant and animal species by destroying habitat

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

NGSS.MS-ESS3-4

Nitrogen is an important element that cycles through different systems. Nitrogen is mainly found in the atmosphere, but it can't be used in this form. ​ (a)   are able to fix nitrogen and make it usable. ​ (b)   can then take in the usable nitrogen and use it for making important molecules like ​ (c)   . ​ (d)   are able to get their nitrogen from eating plants or eating something that ate a plant.

• viruses
• fungi
• oxygen
• Bacteria
• Plants
• DNA & Nucleic Acids
• Carbohydrates & Lipids
• Animals

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

How does a mushroom help plants?

• Mushrooms decompose organic matter, which plants can then use from the soil

• Mushrooms produce oxygen through photosynthesis, which the plants then use

• Mushrooms provide shade for plants to grow underneath, which helps the plants with photosynthesis

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NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-LS1-5

An increase in the amount of ​ (a)   could lead to a higher carrying capacity.

• space
• predation
• competition
• disease

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which choice most closely approximates the deer population's carrying capacity based on the graph?

• 100

• 80

• 60

• 10

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which statement best explains section X?

• density independent factors become more common, leading to controlled growth

• energy is used for interbreeding between members of different species

• the population has reached the carrying capacity of its environment, so density dependent factors limit growth

• a predator recycles the remains of dead organisms

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Match the following types of relationships to their descriptions:

• Mutualism

• Both organisms benefit (help each other)

• Parasitism

• One organism benefits and the other is harmed

• Competition

• Both organisms are harmed by fighting over a resource

• Commensalism

• One organism benefits while the other remains neutral