Water Quality B/C

Test your knowledge of various Science Olympiad events.
User avatar
BennyTheJett
Exalted Member
Exalted Member
Posts: 453
Joined: Thu Feb 21, 2019 2:05 pm
Division: Grad
Pronouns: He/Him/His
Has thanked: 95 times
Been thanked: 276 times

Re: Water Quality B/C

Post by BennyTheJett »

1) What type of Mangrove is closest to the ocean?
2)What specific adaptation allows this?
3) While carrying out a water quality analysis in the field, you first treat a measured sample with manganese sulfate and then alkali iodide azide. After a golden flocculant forms and settles, you acidify the sample with sulfuric acid, and add a starch solution. What chemical do you need to titrate the sample with to finish this analysis?
Menomonie '21 UW-Platteville '25

Division D and proud. If you want a Geology tutor hmu.
User avatar
k1208438
Member
Member
Posts: 11
Joined: Mon Aug 03, 2020 9:40 am
Division: B
State: TX
Pronouns: He/Him/His
Has thanked: 25 times
Been thanked: 127 times

Re: Water Quality B/C

Post by k1208438 »

1, The Rhizophora mangrove, Its closest to the flooding tides. 2,root system allows so that it wont get swept away, and it can filter out the salt in the water. 3,Ethylenediaminetetraacetic acid? This is my first post because I have been living under a rock.
User avatar
BennyTheJett
Exalted Member
Exalted Member
Posts: 453
Joined: Thu Feb 21, 2019 2:05 pm
Division: Grad
Pronouns: He/Him/His
Has thanked: 95 times
Been thanked: 276 times

Re: Water Quality B/C

Post by BennyTheJett »

Number one was Red Mangroves (was what I was looking for)

Your turn!
Menomonie '21 UW-Platteville '25

Division D and proud. If you want a Geology tutor hmu.
User avatar
k1208438
Member
Member
Posts: 11
Joined: Mon Aug 03, 2020 9:40 am
Division: B
State: TX
Pronouns: He/Him/His
Has thanked: 25 times
Been thanked: 127 times

Re: Water Quality B/C

Post by k1208438 »

Aight, so first question is: Name the 6 stages of water stratification(I’m looking for the seasonal changes)
2, Name a certain invasive species in Lake Michigan it is named after a animal.
3, Name 4 Macrovertebrae that live in a river ecosystem

PM me if I haven’t replied with answers
Last edited by k1208438 on Tue Aug 04, 2020 2:23 pm, edited 1 time in total.
User avatar
SilverBreeze
Exalted Member
Exalted Member
Posts: 305
Joined: Thu Nov 28, 2019 3:42 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 156 times
Been thanked: 289 times

Re: Water Quality B/C

Post by SilverBreeze »

Just going to mention that the current topic is marine/estuary, not freshwater (we all make mistakes):
Name the 6 stages of water stratification(I’m looking for the seasonal changes)
2, Name a certain invasive species in Lake Michigan it is named after a animal.
3, Name 4 Macrovertebrae that live in a river ecosystem
1. Turnover? Not quite sure what you're looking for.
2. I'm guessing zebra mussel?? All animals are named after themselves?
4. mayfly, stonefly, waterboatman, dragonfly
Last edited by SilverBreeze on Tue Aug 04, 2020 5:09 pm, edited 1 time in total.
Troy SciOly 2019 - now
Suzanne SciOly 2016 - 2019
Events this season: Water Quality, Forensics, Ornithology, Dynamic Planet, Sounds of Music, Environmental Chemistry

I support our LGBTQ+ community. I am proud of you.
User avatar
SilverBreeze
Exalted Member
Exalted Member
Posts: 305
Joined: Thu Nov 28, 2019 3:42 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 156 times
Been thanked: 289 times

Re: Water Quality B/C

Post by SilverBreeze »

Next set of questions in case I forget:

1. What type of symbiosis exists between zooxanthellae and corals?
2. Why do estuaries have low species diversity but high productivity?
3. What are the toxins found in crown-of-thorns starfish called, and what household item do they have similar properties to?
Troy SciOly 2019 - now
Suzanne SciOly 2016 - 2019
Events this season: Water Quality, Forensics, Ornithology, Dynamic Planet, Sounds of Music, Environmental Chemistry

I support our LGBTQ+ community. I am proud of you.
User avatar
k1208438
Member
Member
Posts: 11
Joined: Mon Aug 03, 2020 9:40 am
Division: B
State: TX
Pronouns: He/Him/His
Has thanked: 25 times
Been thanked: 127 times

Re: Water Quality B/C

Post by k1208438 »

SilverBreeze wrote: Tue Aug 04, 2020 5:05 pm Just going to mention that the current topic is marine/estuary, not freshwater (we all make mistakes):
Name the 6 stages of water stratification(I’m looking for the seasonal changes)
2, Name a certain invasive species in Lake Michigan it is named after a animal.
3, Name 4 Macrovertebrae that live in a river ecosystem
1. Turnover? Not quite sure what you're looking for.
2. I'm guessing zebra mussel?? All animals are named after themselves?
4. mayfly, stonefly, waterboatman, dragonfly
1, I was looking for the seasonal changes
2, I should have worded better ,sorry.
3, correct
User avatar
SilverBreeze
Exalted Member
Exalted Member
Posts: 305
Joined: Thu Nov 28, 2019 3:42 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 156 times
Been thanked: 289 times

Re: Water Quality B/C

Post by SilverBreeze »

k1208438 wrote: Wed Aug 05, 2020 1:41 pm 1, I was looking for the seasonal changes
Could you clarify what those seasonal changes are(spoilered, of course)? Are you referring to turnovers? I wasn't aware of there being named stages, but I could be wrong, of course. Is this in reference to freshwater or marine? Were you perhaps looking for the layers of stratification instead?
Troy SciOly 2019 - now
Suzanne SciOly 2016 - 2019
Events this season: Water Quality, Forensics, Ornithology, Dynamic Planet, Sounds of Music, Environmental Chemistry

I support our LGBTQ+ community. I am proud of you.
User avatar
BennyTheJett
Exalted Member
Exalted Member
Posts: 453
Joined: Thu Feb 21, 2019 2:05 pm
Division: Grad
Pronouns: He/Him/His
Has thanked: 95 times
Been thanked: 276 times

Re: Water Quality B/C

Post by BennyTheJett »

SilverBreeze wrote: Wed Aug 05, 2020 2:30 pm
k1208438 wrote: Wed Aug 05, 2020 1:41 pm 1, I was looking for the seasonal changes
Could you clarify what those seasonal changes are(spoilered, of course)? Are you referring to turnovers? I wasn't aware of there being named stages, but I could be wrong, of course. Is this in reference to freshwater or marine? Were you perhaps looking for the layers of stratification instead?
I think they were looking at how the stratification changes throughout the year. For instance in the middle of summer, the water near the surface is less dense than the water at depth. I think turnover was part of the question, but I'm not positive either.
Menomonie '21 UW-Platteville '25

Division D and proud. If you want a Geology tutor hmu.
User avatar
AstroClarinet
Member
Member
Posts: 61
Joined: Thu Aug 06, 2020 9:56 am
Division: C
Pronouns: He/Him/His
Has thanked: 97 times
Been thanked: 34 times

Re: Water Quality B/C

Post by AstroClarinet »

SilverBreeze wrote: Tue Aug 04, 2020 5:14 pm Next set of questions in case I forget:

1. What type of symbiosis exists between zooxanthellae and corals?
2. Why do estuaries have low species diversity but high productivity?
3. What are the toxins found in crown-of-thorns starfish called, and what household item do they have similar properties to?
1. Mutualism (but specifically, obligate mutualism, endosymbiosis, and trophic mutualism)
2. Probably because organisms that live in estuaries require specific adaptations to survive in the changing conditions, but upwelling and rivers bring lots of nutrients to the plants
3. (Astero)saponins; soap

1. To defend themselves, sea cucumbers perform which type of autotomy?
2. Toxins produced by dinoflagellates are accumulated in moray eels, groupers, and humphead wrasses; these toxins can cause what type of food poisoning?
3. Algae undergo which type of life cycle, which involves switching between sporophyte and gametophyte generations?

This is my first post because I too have been living under a rock.
AstroClarinet's Userpage
Nats 2022: Remote sensing 3rd, Astronomy 6th
 Astro, Genes, Water, DigiStructures, Solar System, Boomi, Density, Eco, Optics, Towers, Microbe, Mission Possible

Return to “2020 Question Marathons”