APES 8.3/8.5

Which of the following best describes the action of an endocrine disruptor?

• An endocrine disruptor attacks hormones that invade a body system and cause disease.

• An endocrine disruptor blocks the receptor protein binding site of a hormone so that the cell cannot receive a signal.

• An endocrine disruptor acts as an organic catalyst, produced by living things to regulate the rate of chemical reactions.

• An endocrine disruptor helps to transport substances, such as pesticides, in an organism following exposure.

Endocrine disruptors directly affect which of the following in an organism?

• White blood cells

• Hormones

• Hemoglobin

• Oxygen

Tags

NGSS.HS-LS1-3

Which of the following is the most likely consequence of runoff transporting chemicals that are endocrine disruptors to a pond?

• Decreased turbidity in the pond

• Increased frequency of birth defects in fish populations in the pond

• Increased mutualistic relationships between fish and frog populations in the pond

• Increased dissolved oxygen in the pond

Tags

NGSS.MS-LS2-4

Which of the following is a way to potentially eliminate one of the greatest threats to the world's mangrove wetlands?

• Increase desalination to reduce the effects of prolonged drought in mangroves.

• Integrate ecologically sound shrimp aquacultural practices with mangrove management.

• Construct dams in mangroves to increase sediment load and decrease pollution.

• Employ irrigation methods to address potential desertification of mangrove habitats.

Tags

NGSS.MS-LS2-5

A beach community was recently negatively affected by a hurricane. Community leaders are looking for a potential solution to prevent damage from future hurricanes. Below is a list of their concerns as well as how important each issue is to the community.

Which of the following solutions would best address the issues of greatest concern in the community?

• Construction of a seawall

• Planting mangrove forests

• Construction of an offshore breakwater

• Adding large sand dunes

Tags

NGSS.MS-ESS3-2

NGSS.MS-ETS1-3

Long Island Sound is a body of water off the northeast coast of the United States. Over nine million people live in the small watershed area that feeds into the sound. To determine the effect of the population density on the watershed, scientists measured the oxygen content of bottom waters in the sound. The data from late summer 2013 are displayed in the map below.

Which of the following factors would most likely contribute to the conditions observed in the Long Island Sound?

• Overfishing

• Plastic pollution

• Sewage treatment

• Restricted Circulation

Tags

NGSS.MS-ESS3-4

Based on the diagram, which of the following is an expected consequence of runoff and sewage in an aquatic environment?

• Decreased oxygen levels in surface water as a result of a decrease in photosynthetic rates by algae

• Increased oxygen levels in bottom water from increased rates of cellular respiration in decomposers

• Decreased oxygen production by seaweed on the seafloor from an increase in turbidity

• Increased oxygen production by decomposition of dead fish and other aquatic organisms

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS1-6

Based on the image, which of the following conclusions can best be drawn to describe the conditions in the Long Island Sound?

• The sound has high levels of dissolved oxygen as a result of storm water runoff from urban areas.

• The sound has high levels of phosphorus and nitrogen from an increase in the number of producers.

• The sound has large numbers of phytoplankton blooms that are decomposing and consumed by respiring bacteria.

• The sound has high numbers of respiring fish populations and very low turbidity.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which of the following is a common characteristic of lakes undergoing cultural eutrophication?

• Decreased rates of sediment accumulation

• Increased levels of plant nutrients

• Decreased amounts of green and blue-green algae

• Increased levels of oxygen throughout the water column

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

If wastewater treatment plant effluent that contains nitrates and phosphates is allowed to flow into a body of water, which of the following may result?

• Chlorination

• Decomposition

• Eutrophication

• Methylation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-ESS3-4