Ecology B/C

Test your knowledge of various Science Olympiad events.
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kate!
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Re: Ecology B/C

Postby kate! » May 2nd, 2018, 7:21 pm

1. How are edaphic savannas formed, and what is one example of an edaphic savanna?
2. Chlorofluorocarbons are responsible for the degradation of which atmospheric layer?
3. Referring to the previous question, which treaty sought to fix that damage?
4. Again referring to question two, this caused a "hole" over which continent?
1. Edaphic savannas are created by soil conditions. An example is a savanna in Nigeria (not sure about this??)
2. The ozone layer.
3. The Montreal Protocol?
4. Antartica
Two years ago I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Last year I knew stuff about amphibians, reptiles, water, and more experiments, yay again!
Now I'm learning stuff about oceanography, fossils, and writing/following instructions, yay for the third time!

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Re: Ecology B/C

Postby Fridaychimp » May 3rd, 2018, 5:25 am

1. How are edaphic savannas formed, and what is one example of an edaphic savanna?
2. Chlorofluorocarbons are responsible for the degradation of which atmospheric layer?
3. Referring to the previous question, which treaty sought to fix that damage?
4. Again referring to question two, this caused a "hole" over which continent?
1. Edaphic savannas are created by soil conditions. An example is a savanna in Nigeria (not sure about this??)
2. The ozone layer.
3. The Montreal Protocol?
4. Antartica
Nice job! Your turn.
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kate!
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Re: Ecology B/C

Postby kate! » May 4th, 2018, 3:23 pm

1. Name the 3 largest grasslands.
2. What is an example of a biological hotspot?
3. Are point source or non point source pollutants more common and why?
Two years ago I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Last year I knew stuff about amphibians, reptiles, water, and more experiments, yay again!
Now I'm learning stuff about oceanography, fossils, and writing/following instructions, yay for the third time!

MattChina
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Re: Ecology B/C

Postby MattChina » May 5th, 2018, 7:37 am

1. Name the 3 largest grasslands.
2. What is an example of a biological hotspot?
3. Are point source or non point source pollutants more common and why?
1. Nagqu, Great Plains, Canadian Praries
2. Carribean islands
3. Non-point source because they come from many different places?
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kate!
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Re: Ecology B/C

Postby kate! » May 5th, 2018, 12:52 pm

1. Name the 3 largest grasslands.
2. What is an example of a biological hotspot?
3. Are point source or non point source pollutants more common and why?
1. Nagqu, Great Plains, Canadian Praries
2. Carribean islands
3. Non-point source because they come from many different places?
Correct, your turn!
Two years ago I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Last year I knew stuff about amphibians, reptiles, water, and more experiments, yay again!
Now I'm learning stuff about oceanography, fossils, and writing/following instructions, yay for the third time!

MattChina
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Re: Ecology B/C

Postby MattChina » May 7th, 2018, 7:27 pm

1. Explain the importance of CAM pathway in desert plants and their ability to survive. 
2. Name all the steps in the CAM pathway.
3. Name 2 natural producers of sulfur dioxide.
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kate!
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Re: Ecology B/C

Postby kate! » May 12th, 2018, 5:02 pm

1. Explain the importance of CAM pathway in desert plants and their ability to survive. 
2. Name all the steps in the CAM pathway.
3. Name 2 natural producers of sulfur dioxide.
1. The CAM pathway leaves stomata closed during the day to reduce evapotranspiration and opens them during the night to take in carbon dioxide. This helps the plants retain water.
2. In case you think this is wrong, I got it from http://lifeofplant.blogspot.com/2011/10/c4-and-cam-photosynthesis.html.
a) At night, carbon dioxide diffuses into the leaf and its mesophyll cells.
b) It becomes fixed by the C4 enzyme PEP carboxylase.
c) The product is transformed into malic acid and stored in the cell's vacuoles until daylight.
d) The vacuole fills up a few hours before daylight, and malic acid accumulates in the cytoplasm outside the vacuole.
e) The pH of the cytoplasm turns acidic, and the enzyme stops functioning for the rest of the night.
f) When the sun rises and the stomata closes, carbon dioxide will be photosynthesized into the atmophere and out of the leaf.
g) Next, the malic acid leaves the vacuole and enters the cytoplasm. 
h) It's broken down, and the carbon dioxide enters the chloroplast and is photosynthesized.
3. Volcanoes and hot springs.
Two years ago I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Last year I knew stuff about amphibians, reptiles, water, and more experiments, yay again!
Now I'm learning stuff about oceanography, fossils, and writing/following instructions, yay for the third time!

MattChina
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Re: Ecology B/C

Postby MattChina » May 12th, 2018, 6:42 pm

1. Explain the importance of CAM pathway in desert plants and their ability to survive. 
2. Name all the steps in the CAM pathway.
3. Name 2 natural producers of sulfur dioxide.
1. The CAM pathway leaves stomata closed during the day to reduce evapotranspiration and opens them during the night to take in carbon dioxide. This helps the plants retain water.
2. In case you think this is wrong, I got it from http://lifeofplant.blogspot.com/2011/10/c4-and-cam-photosynthesis.html.
a) At night, carbon dioxide diffuses into the leaf and its mesophyll cells.
b) It becomes fixed by the C4 enzyme PEP carboxylase.
c) The product is transformed into malic acid and stored in the cell's vacuoles until daylight.
d) The vacuole fills up a few hours before daylight, and malic acid accumulates in the cytoplasm outside the vacuole.
e) The pH of the cytoplasm turns acidic, and the enzyme stops functioning for the rest of the night.
f) When the sun rises and the stomata closes, carbon dioxide will be photosynthesized into the atmophere and out of the leaf.
g) Next, the malic acid leaves the vacuole and enters the cytoplasm. 
h) It's broken down, and the carbon dioxide enters the chloroplast and is photosynthesized.
3. Volcanoes and hot springs.
Yeah its right
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kate!
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Re: Ecology B/C

Postby kate! » May 13th, 2018, 4:56 pm

1. Define and give 2 examples of a biological hotspot.
2. How are the three types of savannas (edaphic, derived, climatic) different?
3. Why is the Atacama the driest non-polar desert?
4. What are 3 ways to remove invasive plant species?
5. If you are MattChina, what the heck is up with your signature??
Two years ago I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Last year I knew stuff about amphibians, reptiles, water, and more experiments, yay again!
Now I'm learning stuff about oceanography, fossils, and writing/following instructions, yay for the third time!

MattChina
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Posts: 224
Joined: February 12th, 2017, 8:06 am
Division: B
State: NY
Location: somewhere over the rainbow

Re: Ecology B/C

Postby MattChina » May 13th, 2018, 5:04 pm

1. Define and give 2 examples of a biological hotspot.
2. How are the three types of savannas (edaphic, derived, climatic) different?
3. Why is the Atacama the driest non-polar desert?
4. What are 3 ways to remove invasive plant species?
5. If you are MattChina, what the heck is up with your signature??
1. Tropical Andes and Mediterranean Basin
2. The way they are formed
3. Ocean currents, dry winds, rain shadow effect 
4. prescribed fire, herbicides and flooding
5. moisty *slurp slurp
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