Wednesday, December 9, 2015

6-2 Homework

1. Play Ecodefenders on line.

2. Answer these questions here! If it doesn't work on line, write your answer on paper, and bring tomorrow.


a. What adaptations were helpful for your organisms to survive in your chosen biome? Why?


b. How do changes in an ecosystem effect populations of native species? Explain what happened.


****Note: I was just reminder of your concert tonight--Awesome!! Have fun! If you need to delay this till Thursday, that is fine.

12 comments:

  1. Qa. I made my invasive species nocturnal, so it would evade my natural competitor's main predator, and chose the species with the highest number of predation. I also experimented with my invasive species being a chemical defender, and with bright colors to warn off predators. I also made the invasive species very fast (to escape predeators) and gave it the same diet as the native competitor, so there would be a common main resource challenge.
    Qb. When I added the invasive species, more than one population was affected. The website didn't tell me, but I'm sure that the primary species (other than Brown Primary) were affected. Also, with my invasive species' defence being chemical, it used the chemicals to poison one of the secondary predators that tried to eat the invasive species. So not only did the native species start to go extinct, with the VERY kind help of some predators, the invasise species also caused some Green Secondary to die off. It's like blueplanetbiomes.org says: if you change one part of a biome, it causes a ripple effect and changes to whole biome, and occasionally others.
    -Elizabeth 6-2 12/9/15

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  2. Qa. My species had strength in numbers so it would reproduce even more when my population would go down. Another thing my species had was also bright colors to warn away predators.My species was nocturnal because there wasn't as many of my
    predators out. My species was also a carnivore, so it could eat all my predators when they came close. At first when I started the game I was eating all of my predators but when I changed from omnivore to carnivore my population went down till I was extinct.
    Qb. I agree with Elizabeth, more then one species was affected. I used my chemical on the bigger species rather then the smaller ones, because I was smaller then then bigger ones and they were killing me. It took a while for my population to go up and that affected the other species around me for there population to go up.
    -Hannah 6-2 12/9/2015

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  3. Very thoughtful responses!! Excellent analysis of variables effecting success and multiple shifts in species' populations due to changes to an ecosystem. (invasive.) Keep up the great work!

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  5. A. Some adaptions that helped my invasive species was to be a omnivore, this helped because i could eat anything, unlike the native species, where they only eat meat. I also made the invasive species to have even population, and size so that i can fight off the native species. To add on, i had bright red colors on my species so that i can warn off predators that want to eat me.

    B. Changes in my ecosystem affected the native species because whenever the prey for them would become extinct (because i ate them) the native species went extinct. This happened in my first game that i played. Also, when the native species prey got populated, the species also became stronger and, more populated. This lend to me being extinct in the second game. So whatever the native species did, then that might affect me with my invasive species.

    Jesse L. 6-2

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  6. a. Some adaptations I had were that I was an omnivore (like Jesse) and that helped me because if one food source went down (for example the plants) I could always eat meat instead. Also I was brown so I blended in with my environment so it made it hard for my predators to see me. It also made it easier to sneak up on my prey.

    b. The change in my ecosystem affected native species because I came in and ate one of the native species. Then the other species that ate that went down because they have less food. And then the species that ate that had less food so their numbers decreased. And so on. It created a ripple effect in the ecosystem for the different kinds of native species. My competitor did not have much resilience so it went extinct.

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  7. Qa. I played tree times and used all three protection ways and my best for my creature was the fleeing protection because when a native species was trying to eat me my creature just fled. Also, being a innovator who took a longer reproduction rate helped me because it allowed me to take my time and see what the other native creatures where eating to let me know what my creature was going to eat next. Being crepuscular help my creature also because my prey was also crepuscular and my prediture wasn't so it helped by allowing my creature to eat its prey and not get killed.
    Qb The creature I made effected the ecosystem because I would eat food that the native creatures needed to survive and ended up killing the other native species. My creatures size also effected the ecosystem because being bigger that the apex is a big change because usually the apex is the biggest animal in a food web or food chain. Another thing of my creature that brought extinction to the ecosystem that I was in was the time of day I went out to hunt because when most of the food was out I was out also and with more food for me means my population grows and when it does my preys goes down.

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  8. Allie Bush, 6-2, Science Homework

    (SORRY, USING MY MOM’S COMPUTER SO, IT COMES UP AS HER GOOGLE+ PROFILE ACCOUNT AND EMAIL)!

    Q/a. I realized that the biomes that we had to choose from didn’t really have anything to do with our adaptations, survival and invading stats, except that the other species had different adaptations than in the other biomes. For example, in the woodland biome the one of the second consumers might have poisonous defence, small size but very fast and bright colors as their adaptations compared to an animal in the forest biome, one of the second consumers might have physical defence, dark colors for camouflage and large size but very slow. Therefore, the only things that was different about each biome and the adaptations the animals used in each biome are; the way the biome looks (obviously) and the adaptations the animals could have.

    Q/b. Changes in the ecosystem from the invasive species affect native populations with the “ripple effect” (or as I like to say, “the domino effect”), as Elizabeth quoted from blueplanetbiomes.org. For example, when my invasive species wiped-out the orange primary (a native species) in the Grassland Biome, it soon happened that the blue secondary (another invasive species) went extinct (then the simulation ended). This shows that when one (small or large) thing happens and causes any form of change, something else happens because of the change before it. Therefore, one change in an ecosystem’s native species causes even more changes in the other native species in that ecosystem and sometimes in native species of others ecosystems too!

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  9. Qa. Some adaptations are that my animal was small so it doesn't need as much food, also its height helps it reproduce faster which creates more invaders to kill the natives. I also agree with Alicia that the fleeing defense was very helpful with my animal's survival. It helped me escape from animals that try to eat me. I also agree with molly that my animal being a carnivore help to stay alive and it was rare that I starved.

    Qb.Changes in the ecosystem was that my animal, the invasive species, ate the native primary consumer, which affected it's predators, which effected it's predators and so on.

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  10. Qa. One of the adaptations that helped me to invade my competitor was to be Chemical Defensive. I did this so that if the apex predator eats me then it will die when it does. This plan worked and I happened to make the apex predator go extinct using my poison. I also decided to be a Carnivore so I could eat and invade my competitor. This helped especially because my competitor had a fast reproductive rate. Finally another adaptation that was helpful for me was to be fast. This helped me to run away from my predators.

    Qb. A lot of the native species of the Marshland ecosystem became extinct from the invasive species invading it. When I played I was surprised that The invasive species wiped out the entire population of the apex predator.

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  11. a. One adaptation that was helpful was the chemical defense. This was helpful because when the apex predator ate the invasive species it would die to, so it couldn't eat more of the invasive species. Another adaptation I had was size. The invasive species was big enough so only the apex predator could eat me. Also, being an omnivore helped because if one food source went down the invasive species could eat another food source.
    b. Changes in an ecosystem effect native populations because if there is an invasive species it could eat all the primary consumers and then the secondary consumers don't have food so their population goes down. Then because the secondary consumers population has gone down the tertiary consumers don't have enough food and their population goes down and so on. Now that there is no more food for the invasive species (because they ate all of it) their population will soon go down. Finally most of the biome has no life.

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  12. a. I made my organism very large so my organism would not have any predator. My organism is also a carnivore which makes it easier to defeat my competitor. My organism was also able to strength in numbers and is slow so it would use less energy.

    b.My organism was mostly able to eat all the primary consumer which it starve the secondary consumer and the apex. My organism was also able to eat the secondary consumer. After eating and starving almost all the native species the native species population become low.

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