Ecosystems Blitz Quizizz

This news article appeared in a New Zealand newspaper dated August 14, 1912. The prediction in the news article, which was made over 100 years ago, may be considered

• accurate because the average global temperature has risen

• accurate because the average global temperature has lowered

• inaccurate because we don’t burn coal today

• inaccurate because our carbon dioxide production has decreased

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

The element carbon and its compounds are constantly cycled between the living and nonliving parts of the ecosystem. This cycling is important because

• without carbon dioxide in the atmosphere, the ozone shield would break down completely

• carbon is a component of DNA, proteins, and other compounds essential for living organisms

• the process of photosynthesis releases carbon dioxide into the atmosphere, where it can be taken in by animals for the process of respiration

• carbon is required by humans to make all of the same proteins that all other mammals synthesize

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The sea cucumber, a relative of sea stars and sea urchins, was once mostly ignored by humans. Even though no scientific evidence exists, some people believe that eating sea cucumbers has medical benefits. As a result, sea cucumbers that were once plentiful are now found in small numbers.

Which statement most directly describes this situation?

• Sea cucumbers are an animal resource being appropriately managed to benefit humans.

• The population of sea cucumbers is being greatly reduced by natural predators, such as sea stars.

• The direct harvesting of organisms by humans can have irreversible effects.

• Biological research has led to the use of plant and animal products that have medical benefits.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Lionfish are native to the Indian and Pacific Oceans. They have recently been found along the southeast coast of the U.S., the Caribbean, and in parts of the Gulf of Mexico. Experts speculate that the lionfish invasion was caused by people dumping unwanted lionfish into the Atlantic Ocean from home aquariums. Lionfish have venomous spines and feed on small crustaceans and many fish, including the young of important commercial fish species such as snapper and grouper. The current invasion of lionfish most likely started with the dumping of about 12 fish. Today, there are thousands of them over a wide area.

Which curve would most accurately depict lionfish population growth in the Caribbean?

• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Deforestation is a major cause of soil loss. Without trees and other plants to hold the soil in place, it either washes or blows away. Governments, international organizations, and others are working to decrease the rate of deforestation. In addition to slowing the rate of soil loss, another potential benefit of this action would be

• a decrease in atmospheric carbon dioxide levels

• more land available for agriculture

• a decrease in the amount of firewood for heating

• more locations for the construction of new homes

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Match the following macromolecules and monomers

• nucleic acids

• 
• carbohydrates

• 
• lipids

• 
• proteins

• 

Tags

NGSS.HS-LS1-6

Choose the area of the graph where you'd expect to find the approximate carrying capacity for this population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Categorize the limiting factors

Groups:

(a) Density Dependent

,

(b) Density Independent

• competition

• hunting by humans

• predation

• parasites

• disease

• forest fires

• urbanization

• earthquakes

What does high species diversity indicate?

• A healthy ecosystem with a wide variety of species coexisting.

• A lack of competition among species.

• An ecosystem that is prone to diseases.

• A decrease in the number of species present.

Tags

NGSS.MS-LS2-5

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis
•  decomposition and respiration

Tags

NGSS.HS-LS2-5