Ecology B/C

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

Post by Fridaychimp »

1. What were Thomas Malthus's ideas on population growth?
2. Give two examples of animals using crypsis.
3. What factors prevent trees from growing in temperate grasslands?
4. Name a benefit and a harm of parthenogenesis.
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Re: Ecology B/C

Post by kate! »

Fridaychimp wrote:
1. What were Thomas Malthus's ideas on population growth?
2. Give two examples of animals using crypsis.
3. What factors prevent trees from growing in temperate grasslands?
4. Name a benefit and a harm of parthenogenesis.
1. Thomas Malthus created the idea of Malthusian growth, in which population increases geometrically, but food increases arithmetically. 
2. a) some frogs use aposematic coloration to warn others that they are poisonous. b) stick bugs camouflage within trees to avoid detection by predators.
3.  Frequent fires prevent trees from growing in temperate grasslands.
4. If individuals become isolated, this is a method to reproduce without a second organism present. However, it limits genetic diversity.
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Re: Ecology B/C

Post by Fridaychimp »

kate! wrote:
Fridaychimp wrote:
1. What were Thomas Malthus's ideas on population growth?
2. Give two examples of animals using crypsis.
3. What factors prevent trees from growing in temperate grasslands?
4. Name a benefit and a harm of parthenogenesis.
1. Thomas Malthus created the idea of Malthusian growth, in which population increases geometrically, but food increases arithmetically. 
2. a) some frogs use aposematic coloration to warn others that they are poisonous. b) stick bugs camouflage within trees to avoid detection by predators.
3.  Frequent fires prevent trees from growing in temperate grasslands.
4. If individuals become isolated, this is a method to reproduce without a second organism present. However, it limits genetic diversity.
Looks good, your turn.
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Re: Ecology B/C

Post by kate! »

1. What is the difference between Batesian and Mullerian mimicry?
2. Why do some deserts contain Entisols, rather than Aridisols?
3. How does eutrophication affect the properties of the water it occurs in?
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Re: Ecology B/C

Post by MattChina »

kate! wrote:
1. What is the difference between Batesian and Mullerian mimicry?
2. Why do some deserts contain Entisols, rather than Aridisols?
3. How does eutrophication affect the properties of the water it occurs in?
1. Müllerian mimicry is when multiple species share the same warning coloration, but all of them have defenses and Batesian is when harmless species mimics aposematic coloration of harmful one
2.They are very dry
3. Eutrophication increased dissolved oxygen in the water
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Re: Ecology B/C

Post by kate! »

MattChina wrote:
kate! wrote:
1. What is the difference between Batesian and Mullerian mimicry?
2. Why do some deserts contain Entisols, rather than Aridisols?
3. How does eutrophication affect the properties of the water it occurs in?
1. Müllerian mimicry is when multiple species share the same warning coloration, but all of them have defenses and Batesian is when harmless species mimics aposematic coloration of harmful one
2.They are very dry
3. Eutrophication increased dissolved oxygen in the water
I mean, your second answer could be wayyyyyy more specific, but other than that, you're good.
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Re: Ecology B/C

Post by MattChina »

This sounds like a stupid question but its valid. Why are deserts so dry?
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Re: Ecology B/C

Post by kate! »

Deserts are so dry because there is very little precipitation/humidity.
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Re: Ecology B/C

Post by MattChina »

kate! wrote:
Deserts are so dry because there is very little precipitation/humidity.
but why is there little precipitation and humidity
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Re: Ecology B/C

Post by kate! »

MattChina wrote:
kate! wrote:
Deserts are so dry because there is very little precipitation/humidity.
but why is there little precipitation and humidity
Wind traveling there cannot pick up moisture.
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