Water Quality B/C

[SciolyMaster]

New questions!

1. Which organism on the species list attracts fish to "clean" parasites from by having striking coloration and performing "dances"?
2. Which organism on the species list belongs to the phylum Cnidaria, but is not considered a reef-building organism?
3. High-trophic-level predators such as groupers often contain high concentrations of toxins such as methylmercury. What is this phenomenon called, and why does it occur?

[AstroClarinet]

New questions!

1. Which organism on the species list attracts fish to "clean" parasites from by having striking coloration and performing "dances"?
2. Which organism on the species list belongs to the phylum Cnidaria, but is not considered a reef-building organism?
3. High-trophic-level predators such as groupers often contain high concentrations of toxins such as methylmercury. What is this phenomenon called, and why does it occur?

1. Banded coral shrimp
2. Gorgonia
3. Biomagnification- organisms low on the food chain may each have a small amount of the toxins; larger organisms eat a lot of the smaller organisms and end up with a lot of the toxin. This continues up the food chain until the top predators have high concentrations of the toxin.
1. Explain the difference between top-down and bottom-up trophic cascades.
2. Explain some of the uses of phosphorus in organisms.
3. Let's say there's a fish which is toxic and has warning coloration. Another non-toxic fish evolves to have similar coloration. What type of mimicry is this, and who benefits (toxic fish, non-toxic fish, predator)?

[SciolyMaster]

New questions!

1. Which organism on the species list attracts fish to "clean" parasites from by having striking coloration and performing "dances"?
2. Which organism on the species list belongs to the phylum Cnidaria, but is not considered a reef-building organism?
3. High-trophic-level predators such as groupers often contain high concentrations of toxins such as methylmercury. What is this phenomenon called, and why does it occur?

1. Banded coral shrimp
2. Gorgonia
3. Biomagnification- organisms low on the food chain may each have a small amount of the toxins; larger organisms eat a lot of the smaller organisms and end up with a lot of the toxin. This continues up the food chain until the top predators have high concentrations of the toxin.

All correct!

[SilverBreeze]

1. Explain the difference between top-down and bottom-up trophic cascades.
2. Explain some of the uses of phosphorus in organisms.
3. Let's say there's a fish which is toxic and has warning coloration. Another non-toxic fish evolves to have similar coloration. What type of mimicry is this, and who benefits (toxic fish, non-toxic fish, predator)?

1. top-down is when predators control populations by how many prey they eat, and how many prey those remaining prey eat, etc., while bottom-up is when producers control populations by how much energy they fix from the sun into the system, and how much the primary consumers allow the secondary consumers to access it, etc.
2. DNA backbone, bone structure, ATP, phospholipids in cell membrane
3. Batesian mimicry; non-toxic benefits

[AstroClarinet]

1. Explain the difference between top-down and bottom-up trophic cascades.
2. Explain some of the uses of phosphorus in organisms.
3. Let's say there's a fish which is toxic and has warning coloration. Another non-toxic fish evolves to have similar coloration. What type of mimicry is this, and who benefits (toxic fish, non-toxic fish, predator)?

1. top-down is when predators control populations by how many prey they eat, and how many prey those remaining prey eat, etc., while bottom-up is when producers control populations by how much energy they fix from the sun into the system, and how much the primary consumers allow the secondary consumers to access it, etc.
2. DNA backbone, bone structure, ATP, phospholipids in cell membrane
3. Batesian mimicry; non-toxic benefits

Correct!

[SilverBreeze]

1. True or false: fan corals have zooxanthellae.
2. What is the second-most common positive ion in the ocean?
3. Describe the shell of a dead flamingo tongue snail.

[twoplustwoisten]

1. True or false: fan corals have zooxanthellae.
2. What is the second-most common positive ion in the ocean?
3. Describe the shell of a dead flamingo tongue snail.

1 true, for at least some 2 Magnesium, as Mg²⁺ 3 Blank and off-white, like bone (is it bone?), with a ridge around the middle (additional question, how do you get the answers on separate lines, the ENTER key isn't working right for this for me)

[SilverBreeze]

1. True or false: fan corals have zooxanthellae.
2. What is the second-most common positive ion in the ocean?
3. Describe the shell of a dead flamingo tongue snail.

1 true, for at least some 2 Magnesium, as Mg²⁺ 3 Blank and off-white, like bone (is it bone?), with a ridge around the middle (additional question, how do you get the answers on separate lines, the ENTER key isn't working right for this for me)

Correct, although it's not bone.
For getting a new line between spoiler and hide tags, you need to hit enter four times.
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[spoiler]hello[/spoiler]

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hello

[twoplustwoisten]

Thank you, Ms. Breeze.

1. How much energy is lost between trophic levels, and what is this called?
2. Please provide a brief description of mutualism, commensalism, and parasitism.
3. Please explain the difference between a niche and a habitat.

[Mayur917]

Thank you, Ms. Breeze.

1. How much energy is lost between trophic levels, and what is this called?
2. Please provide a brief description of mutualism, commensalism, and parasitism.
3. Please explain the difference between a niche and a habitat.

Hello, here are my answers to your questions.

Click to Show Answer

1. About 90% of energy is lost through metabolic processes, leaving 10% of viable energy is available for the upper trophic level. This is known as the 10% rule in ecology.

2. Mutualism, commensalism, and parasitism are all symbiotic relationships in ecology. Mutualism refers to two organisms benefiting off each other, for example, terrestrial plants and insects (e.g. pollination). Commensalism refers to one organism benefiting from another organism, but the other organism is neither benefits nor is harmed, for example, ergets eating insects that a cattle kicks around. Parasitism refers to one organism (the parasite) benefiting from another (host) and harming it in the process.

3. Habitat refers to the region in which a species lives in. Niche is more specific. Niche refers to a habitat where species activities and interactions it has with its environment and surrounding organisms.