This graphic shows both a healthy and an unhealthy fresh water stream that could appear in the headwaters of the Chesapeake Bay watershed. The graphic includes species that are characteristic of both healthy and unhealthy freshwater streams [...] in the Bay watershed. The left, "healthy" side of the graphic shows several macroinvertebrates, fish, birds, insects and vegetation that are indicative of a healthy freshwater system. Species shown are stonefly larva, caddisfly crayfish, devil crayfish, yellow lamp mussel, green floater mussel, muskrat, belted kingfisher, great blue heron, brown trout, striped bass, alewives, pumpkinseed fish, coontails, eelgrass, red maple tree, pine trees, and paw paw tree. [...] The right, “unhealthy" side of the graphic shows a murky, “dirty" freshwater system filled with nutrients, sediment, leaves, trash and sickly vegetation. In addition, dead creatures, invasive species, and pollution-tolerant organisms such as bloodworm midge larvae, red midge larvae, midge larvae, black fly larvae, pouch snails, red swamp crayfish and aquatic worms are evident. The land area draining into the unhealthy right side includes numerous impervious surfaces, a tall stack that is dispersing airborne pollutants, eroding shorelines, brownish grass, a pipe discharging polluted water directly to the waterway and garbage on the stream bank. In addition, there is minimal living vegetation, an algal bloom blocking sunlight, no forested buffers and no living shoreline. 1) Explain how the stability of the ecosystem changes from the healthy left side to the unhealthy right side. 2) Make a claim as to whether the right side could ever “heal." 3) Justify your claim with evidence and scientific reasoning from this lesson and your prior learning.
This graphic shows both a healthy and an unhealthy fresh water stream that could appear in the headwaters of the Chesapeake Bay watershed. The graphic includes species that are characteristic of both healthy and unhealthy freshwater streams [...] in the Bay watershed. The left, "healthy" side of the graphic shows several macroinvertebrates, fish, birds, insects and vegetation that are indicative of a healthy freshwater system. Species shown are stonefly larva, caddisfly crayfish, devil crayfish, yellow lamp mussel, green floater mussel, muskrat, belted kingfisher, great blue heron, brown trout, striped bass, alewives, pumpkinseed fish, coontails, eelgrass, red maple tree, pine trees, and paw paw tree. [...] The right, “unhealthy" side of the graphic shows a murky, “dirty" freshwater system filled with nutrients, sediment, leaves, trash and sickly vegetation. In addition, dead creatures, invasive species, and pollution-tolerant organisms such as bloodworm midge larvae, red midge larvae, midge larvae, black fly larvae, pouch snails, red swamp crayfish and aquatic worms are evident. The land area draining into the unhealthy right side includes numerous impervious surfaces, a tall stack that is dispersing airborne pollutants, eroding shorelines, brownish grass, a pipe discharging polluted water directly to the waterway and garbage on the stream bank. In addition, there is minimal living vegetation, an algal bloom blocking sunlight, no forested buffers and no living shoreline. 1) Explain how the stability of the ecosystem changes from the healthy left side to the unhealthy right side. 2) Make a claim as to whether the right side could ever “heal." 3) Justify your claim with evidence and scientific reasoning from this lesson and your prior learning.
Chapter15: Recirculating Systems
Section: Chapter Questions
Problem 3TOF
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![Image Source
Look at the picture above and read the explanation below. Then answer the questions
below.
This graphic shows both a healthy and an unhealthy fresh water stream that could
appear in the headwaters of the Chesapeake Bay watershed. The graphic includes
species that are characteristic of both healthy and unhealthy freshwater streams [...] in
the Bay watershed.
The left, "healthy" side of the graphic shows several macroinvertebrates, fish, birds,
insects and vegetation that are indicative of a healthy freshwater system. Species
shown are stonefly larva, caddisfly crayfish, devil crayfish, yellow lamp mussel, green
floater mussel, muskrat, belted kingfisher, great blue heron, brown trout, striped
bass, alewives, pumpkinseed fish, coontails, eelgrass, red maple tree, pine trees,
and paw paw tree. [...]
The right, "unhealthy" side of the graphic shows a murky, "dirty" freshwater system
filled with nutrients, sediment, leaves, trash and sickly vegetation. In addition, dead
creatures, invasive species, and pollution-tolerant organisms such as bloodworm
midge larvae, red midge larvae, midge larvae, black fly larvae, pouch snails, red swamp
crayfish and aquatic worms are evident. The land area draining into the unhealthy right
side includes numerous impervious surfaces, a tall stack that is dispersing airborne
pollutants, eroding shorelines, brownish grass, a pipe discharging polluted water
directly to the waterway and garbage on the stream bank. In addition, there is minimal
living vegetation, an algal bloom blocking sunlight, no forested buffers and no living
shoreline.
1) Explain how the stability of the ecosystem changes from the healthy
left side to the unhealthy right side.
2) Make a claim as to whether the right side could ever “heal."
3) Justify your claim with evidence and scientific reasoning from this lesson
and your prior learning.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6d163686-3136-4934-9111-4471d64751dd%2Fa451c258-87e7-4dab-a75f-91edadc03d09%2Fcatta9h_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Image Source
Look at the picture above and read the explanation below. Then answer the questions
below.
This graphic shows both a healthy and an unhealthy fresh water stream that could
appear in the headwaters of the Chesapeake Bay watershed. The graphic includes
species that are characteristic of both healthy and unhealthy freshwater streams [...] in
the Bay watershed.
The left, "healthy" side of the graphic shows several macroinvertebrates, fish, birds,
insects and vegetation that are indicative of a healthy freshwater system. Species
shown are stonefly larva, caddisfly crayfish, devil crayfish, yellow lamp mussel, green
floater mussel, muskrat, belted kingfisher, great blue heron, brown trout, striped
bass, alewives, pumpkinseed fish, coontails, eelgrass, red maple tree, pine trees,
and paw paw tree. [...]
The right, "unhealthy" side of the graphic shows a murky, "dirty" freshwater system
filled with nutrients, sediment, leaves, trash and sickly vegetation. In addition, dead
creatures, invasive species, and pollution-tolerant organisms such as bloodworm
midge larvae, red midge larvae, midge larvae, black fly larvae, pouch snails, red swamp
crayfish and aquatic worms are evident. The land area draining into the unhealthy right
side includes numerous impervious surfaces, a tall stack that is dispersing airborne
pollutants, eroding shorelines, brownish grass, a pipe discharging polluted water
directly to the waterway and garbage on the stream bank. In addition, there is minimal
living vegetation, an algal bloom blocking sunlight, no forested buffers and no living
shoreline.
1) Explain how the stability of the ecosystem changes from the healthy
left side to the unhealthy right side.
2) Make a claim as to whether the right side could ever “heal."
3) Justify your claim with evidence and scientific reasoning from this lesson
and your prior learning.
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