Ecology B/C

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

Postby Entomology » September 5th, 2017, 4:08 pm

Welcome to the 2018 Ecology Question Marathon!
1) List 2 adaptations of plants in the grassland and 2 of those in the desert.
2) Define ecosystem service, and provide an example.
3) Describe the role of fire in the Savanna.
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Re: Ecology B/C

Postby Magikarpmaster629 » September 19th, 2017, 8:36 am

Will there be a question? And is it okay to use recourses like https://samedaypapers.com/custom-essays or only my knowlenge?
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You've been bamboozled Unome...the bots are getting so good the can fool the mods...
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Re: Ecology B/C

Postby Unome » September 19th, 2017, 9:11 am

Will there be a question? And is it okay to use recourses like https://samedaypapers.com/custom-essays or only my knowlenge?
The hide bar (in white with bolded text in the original post) can be clicked to reveal the question. You should also put your answer in a hide bar, like so:

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You've been bamboozled Unome...the bots are getting so good the can fool the mods...
Haha I probably should have read the rest of the post...
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Re: Ecology B/C

Postby The48thYoshi » December 10th, 2017, 8:49 am

Welcome to the 2018 Ecology Question Marathon!
1) List 2 adaptations of plants in the grassland and 2 of those in the desert.
2) Define ecosystem service, and provide an example.
3) Describe the role of fire in the Savanna.
Planned on making one of these cause I never saw it.
1. Grassland: deep root systems and flexible stalks. Desert: waxy coatings and photosynthetic stem.
2. The free benefits humans get from an ecosystem. An example is a clean source of water.
3. Fire helps to maintain the open vegetation structure
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Re: Ecology B/C

Postby JakeTheCake » December 21st, 2017, 12:09 pm

I'm pretty sure that's correct,but how about having more water absorbing body's for the desert as an adaptation. :geek:

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Re: Ecology B/C

Postby The48thYoshi » January 11th, 2018, 11:50 am

I guess I’ll give a question then.

Given a species is in Hardy-Weinberg equilibrium and has two alleles, H and W, where the frequency of H is 32%, what proportion of the population is heterozygous HW?
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Re: Ecology B/C

Postby knottingpurple » January 14th, 2018, 9:23 am

I guess I’ll give a question then.

Given a species is in Hardy-Weinberg equilibrium and has two alleles, H and W, where the frequency of H is 32%, what proportion of the population is heterozygous HW?
2*0.32*0.68 = 0.4352, so rounding to 2 significant figures, 44% of the population is heterozygous HW.
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Re: Ecology B/C

Postby The48thYoshi » January 17th, 2018, 2:08 pm

I guess I’ll give a question then.

Given a species is in Hardy-Weinberg equilibrium and has two alleles, H and W, where the frequency of H is 32%, what proportion of the population is heterozygous HW?
2*0.32*0.68 = 0.4352, so rounding to 2 significant figures, 44% of the population is heterozygous HW.
Correct! Your turn.
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Re: Ecology B/C

Postby knottingpurple » January 17th, 2018, 2:35 pm

A population has 250 individuals at the start of a 3-year monitoring period. By the end of the monitoring period, 12 individuals emigrate from the population, 23 individuals join the population, 17 individuals die and 26 individuals are born. What is the average annual growth rate?
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Re: Ecology B/C

Postby kate! » January 21st, 2018, 8:11 am

A population has 250 individuals at the start of a 3-year monitoring period. By the end of the monitoring period, 12 individuals emigrate from the population, 23 individuals join the population, 17 individuals die and 26 individuals are born. What is the average annual growth rate?
The average annual growth rate is 0.08 (percent??? what's the units??)
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Now I know stuff about amphibians, reptiles, water, and more experiments, yay again!
I'm planning to learn stuff about oceanography, fossils, and more water, yay for the third time!


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