Thursday, September 23, 2010

Ecology Questions

You have learned about the factors that can cause a population of organisms to go up and down. You have also learned about the complex relationships that exists between organisms in their environments. Answer the following questions about ecology.
1.) What is the difference between a food web and a food chain?
2.) In the Food Web game you learned about a producer organism called kelp. What might happen to the rest of the food web if a disease suddenly killed most of the kelp?

100 comments:

kaitlyn m. period 8 said...

1. a food web is with many organisms. a food chain is with only a few organisms.


2.the food chain would get smaller and may get so small and turn into a food web.

AlyssaH said...

1. A food chain is a illustration of how one organism depends on the organism under it.

2.If a disease killed most of the kelp the the sea urchins population would go down and the organisms that eat the sea urchins would die.

Jonathan K said...

1.A food chain shows one organism eating another food webs show many organisms eating another.
2.If most of the kelp were killed many more organisms would die.

michaelc said...

1.)a food web shows any animals or insects predator and/or prey.
a food chain shows specific animals
prey.

2.)if more kelp died the fish that ate
kelp would die if they did not get enough food :)

alexis r said...

1.food webs are more complex than food chains.
2.sea urchin for example only ate kelp after it ate the rest of the kelp it would it would die then the stone crab would die then last of all the octopus would die

Brianna P. said...

1. Food webs shows animals that eat several kinds of other animals but also, it may be eaten by other animals too, unlike a food chain.Food chains only go up in a line, for example, it may start with 4 animals, then 3, then 2, and the largest animal will only eat the 2 remaining before the top predator.
2. most of the animals would die out because, the 2nd line of animals would need to eat the kelp, then the 3rd row of animals would need to eat the animals in the 2nd row but most of them would die out causing a lot of types of animals would die out.

Carley L. said...

1.A food web has more oraganisms than a food chain
2.The food chain would get smaller because the bigger fish would eat the smaller fish that are piosinous then that fish becomes piosines, then once a bigger fish eats that one he will die.

shawn w. said...

1.A food web is with many organisms.A food chain has only a few organisms.

2.If you let the food chain get to small the life of the food chain will dye.And the food web would as well.

gabriel p. said...

1.A food chain is a good illustration of how marsh land is interconnected. A food web is a complex relationship.

2.All the other animals in the food chain would die without kelp.

Randy d said...

1.A food web is a web where every eat everybody eat everybody.2.A food chain is where there are few organisms that eat each other.

Chris said...

1.A food web includes a lot of organisms at each level of food gathering. A food chain shows only one organism at each level of food gathering that depend on another organism below it in the food chain.
2.If most of the kelp died from a disease then other animals could die because they would not have food to eat. Then the food web would become very small!

Chris S. said...

1.A food web includes a lot of organisms at each level of food gathering. A food chain shows only one organism at each level of food gathering that depend on another organism below it in the food chain.
2.If most of the kelp died from a disease then other animals could die because they would not have food to eat. Then the food web would become very small!

lucas c said...

1.a food chain only shows one plant or animal for each catogory and a food web is more complex and it shows a whole group of animals that eat more than one animal or plant.
2.if the kelp all died then the herbivores would eat a different plant and not much would change.

Shania G. said...

1. Food chains are lines of progression where one animal needs the ones beneath it in the food chain for food and a food organisms have many animals for food.

2. If all the kelp died because of a disease all the organisms that eat it will die because of the kelp population going down and there will be no food for the organisms.

Arthur Merritt :D said...

1: A food web has many more organisms than a food chain.A food web shows most of the animals in that group.A food chain only shows a few of them.

2: If a disease killed most of the kelp in the sea other organisms that eat them would die off.

kyle h said...

1. The food chain just shows one animal eating one thing but a food web shows when it eats more than one animal.


2.it would get smaller and turn in 2 a food web.

tristan e. said...

A food web is when others depend on each other in order to live. Like a tuna eating a sardine eating plankton.

All the animals would die if something happened to the kelp.

courtney m said...

1.a food web is an illustration of how the things it eats depends on the other things that it eats.

2.the population goes down.

Brent D. said...

1.) A food web is a more complex version of a food web. A food web is a good way to show how one animal depends on only one animal , a food web has more animals and they depend on different animals
2.)If almost all the kelp died the sea urchin would have very little to eat and most of the sea urchins would die off.

John C said...

A food chain is who eats who. A food web is who is what.

joe m said...

1. The difference between food webs and food chains is that the food web shows many different things an organism can eat but a food chain only shows one thing the organism can eat
2. The other animals will just eat the other organisms because it has many other things to eat

shelby y. said...

1. a food chin goes in a circle like snake eats a mouse and an owl eats a snake but a food wed it shows every thing that eats every thing.
2.things like little fish and krill might die.

mia f said...

1. a food web has many organisms.and a food chain has a little organisms




2.the food chain would get smaller and it will be a food web

Mallory m said...

!. A food chain is one organism that eats another one.

2. if one organism died off all the others that depend on it would die too.

Zachery p said...

1. a food web is more complex than a food chain because a food chain goes in as stright line and a food web is shaped like a pyrmid
2. most of the animals will die because kelp is a main food resorcs for animals.

Faith R said...

1.Food Webs have a greater amount of organisms in it. Food chains only have the main organisms in it.

2.If a lot of kelp died that would not let the little animals have a food source to have to eat.Then they would die so then the bigger organisms would not have not have anything to eat so the would die also.The food chain would be torn apart.

ryan h said...

1. food chains are how marsh life are connected. for example a human eats catfish. food webs is the whole cycle like... small fish eat algae & plankton. bigger fish eats small fish sharks eat big fish and crustations humans eat the sharks and every thing each creature eats.

2.alot of organisms will die!

Briyana b. Period 3 said...

1. A food chain is something that is showed that is illustraion and it has fewer animals
2. the food web has a lot of organisms

Rebekah said...

1Answer:A food web is with many organism and a food chain is only with a few organims.

2Answer:If a disease killed most of the kelp. The sea urchins population would go down and the organism that eat the urchins would die.

tyler l said...

A food chain is with lots of fish that get eat by bigger fish if it gets smaller people well run out of food

Jasmine.G said...

1) a food web shows how organisms are related a food chain shows what organisms eat

2) all the food would dye

james saunders said...

1.a food web has many organisms. 2. a food chain has lots of organisms.

Kayleigh said...

1.) the food chain is a big line of animals eat sertain animals.The food web is were if one animal goes extincted they have another animal as there food resourse.
2.)the other animals that eat the kelp willdie and the disesis will go down the food chain.

JOSH C said...

1.Animals depend on each other to live. 2.If many animals die it may hurt the population of the animals and can hurt humans as well as the food chain.

nicole c said...

a food chain is a strait line of
animals but a food web is shaped like
a pyamid.



the rest of the food chain would not
get that much food.

Hannah R said...

1. A food web is a drawing of how a organism may eat lots of different types of organisms, and a food chain is a pyramid where organisms depend on the ones under them.

2. If a disease killed the kelp we might not have any of the other organisms because they depend on the kelp witch is a producer.

Julianna p. said...

1. Food web is more than one type of food.a food chain is one type of food

2.The fish that eats kelp will might die or the fish can eat another food.

Zach B. said...

1.A food chain is one straight line but a food web shows that some animals have more than one diet.For example a fox eats rabbits and and sometimes plant life.
2.The disease would go to fish to fish until one of them died.Even then some fish might eat dead fish and it will keep going.

kelly r said...

1.a food web has every animal connected to each other. a food chain has every food shone seperatey.


2. some animals mat die because some might have to eat the kelp and if the animals have to eat the animal that ate that kelp and it would keep going on and on.

Ray B said...

1. A food web is how marsh life i interconnected.a food chain shows how little things get consumed by larger things.
2. The fish eating the kelp might have to find something else to eat.

juwan H said...

1.A food web shows how different fish or water animals are put in levels.
A food chain shows what animals eat what.

2.IT well all fall apart and ever animal and person would die.

shelby j.period 4 said...

a food web is with lots of organisms. a food chain has a few organisms.

it would kill all the other fish to

Brianna M said...

1)A food web has very many organism's that help each other.

2)If everything killed most of the kelp they would have to eat eachother.

Nathan M. said...

1] Food chains progress by showing that the animal underneath a certain animal is eaten by the one above it.A food web is a complicated type of food chain with multiple links between one animal


2] If the kelp died, many of the organisms that ate it would die out, and so on, resulting in a very tiny food chain!

akira c said...

1. The difference between a food web and a food chain is that food chains show how marsh life is interconnected and a food web shows the complex relationship between animals.

2. The rest of the food chain would die off because their food source would be gone.

sierra w said...

1.A food chain is a illustration on how one organism that feeds on another and another.

2.If a disease killed some of the kelp then the urchins would die and the fish that eat the urchins will die also.

Anne B. said...

1.A food chain one animal eating another animal,and a food web has a lot of different animals with arrows pointing to other animals.

2.If the kelp dies all the animals in the food chain and in the ocean will die, and people will die.

calvin t said...

A food chain is a illustration of how marshy life is interconnected and ow one organism depends on another.

A food web is complex relationship and a level of food

calvin t said...

A food chain is a illustration of how marshy life is interconnected and ow one organism depends on another.

A food web is complex relationship and a level of food

Cody E said...

1.In a food chain the animal on top relies on the animals beneath it. A food web shows the relationship between many organisms.
2.If there was no more kelp the other animals would die off.

taylor D. said...

1.a food chain is a illustration of how one organism depends on the one organism under it.


2.The food chain would get smaller and may get too small to be a food web.

annie m. said...

1.food chains are work mostly for marshes and it only one animal eating the other. food webs are a few animals eating one.
2.if it died it would afect the food web by the animals dieing

Jenna T said...

1. A food chain is to show how different animals in a envirment connect and how they depend on each other. A food web show the relatsinship between two organisms.

2.If a diease started killing the kelp, the food chain would fall apart because all the animals in a food chain rely on each other for food . So when one animal dies , the food chain fall s apart .

CheyanneR said...

1.A food web shows what the organisms eats and what eats it.A food chain shows what the organisms depends on and what depends on it.
2.The organisms that eats the kelp will die so the other organisms that that eats whatever eats the kelp will die and then so the population wil go down.

vijah M. said...

1.Food chains are lines of progression where one animal depends upon those beneath.
2.A food web is that a organism may eat several different organism.

Ariel L. said...

1.food chains are lines of progress were one animal depends on those beneath it in the chain for food.Food webs are complex relationships which may include many organisms at each level of the food gathering.2.other things might die.

AbbyJ. said...

1.)A food web has a lot of organisms.A food chain doesn't have as many.

2.)All of the other organisms in the Food web would die if Kelp got a disease and died.

Elijahc said...

1.A food web is a organisms how eat on other organisms that is smaller.

2.the food chain starts bigger then is gets smaller .

DontrayeB said...

1.a food web is many organisms.
2.a food chain is less organisms.

Alexis P said...

1.A food web looks like a web and shows multiple organisms getting eaten by other organisms. A food chain only shows some organisms getting eaten by each other.

2.If all of the kelp suddenly died then multiple organisms would die from starvation.

lover said...

1. a food chain is a line of progresing where one animal depends on those breath. and a food web is a relationships witch may include many orginisim at each level of food gathering.
2.i think the animals can die because the kelp helps them

AngelP said...

1.A food web is shaped like a pyramid and the food chain is like a circle.
2.If the food chain might get really hungry and then die of starvation.

kylec said...

1.A food chain is a animal that is the strongest and can eat all of the other animals in the chain.
2.If the kelp got a disease the animals above it might die because a animal needs to eat the kelp and it can't so the other animals cant eat the animals below it.

devin w said...

1 Food chains is a illustration how mush life interconnected.
Food webs are complex relationships which includes many organisms at each level of food.

2 The sea urchins will die then the crabs will die die then the Blenny and the octopus will die.

Devery F said...

1.Food chains & food webs are some what different while food chains are a good illustration
2. If the kelp were to die off all of the animals would eventually die

Logan P. said...

1.)A food web has many of organisms.A food chain is only a couple of organisms.
2.)If a disease killed most of the kelp all the organisms at the bottom of the food chain would die which would cause every other organism to die.

mikenson said...

1.the difference between the food web and food chain is the food chain
it there is no more food to eat that a food chain wen there is a lot of food
2.so they will not be a lot of foob.

Isaiah.C said...

1.A food web may include many organisms at each level of food gathering.food chains are a good illustration of how marsh life is interconnected.
2.If a disease kill the kelp then it would get smaller and smaller and it might turn into a food web.

jeffrey f said...

1) Food chains are diffrent from food web because food chains are in order and food webs are in ramdom order.

2) If most of the kelp died the fish would die the bear would and then we will die

Brooke P said...

1.)A food web shows how the many different levels of life are eaten by the higher levels on the web.A food chain is a detailed illustration showing how the life is connected to each other.Every animal depends on each other to survive.
2.)If a disease killed all the kelp the herbivores, carnivores, secondary carnivores and top-level carnivores would eventually die of starvation when the producers all got eaten by the herbivores

kyle b said...

1.)A food web is a complex relation of a group of organizim.
A food chain is illistrated of a marsh
life tat is interconected lines of pergessin.
2.)The organizim population will go down.

Brandon G. said...

1.A food web is a complex of relationships of a organism may eat other organisms but get eaten by others bigger than it.An food chain is a line of progression that an animal depends on the animal below it. 2.All the other animals above it might decrease in population.

Ryan m said...

1)the food web is difforent form a food chain. a food web has many organisms. and the food chain has not a lot of organisms.
2) the food chain would get smaller and end up to a food web

Deyaun D said...

1.A food web is a complex relationship of a lot of animals from different levels in the group.A food chain is a good illustration of how the marshy interconnected.

2.the animals will die because they wouldn't have any to eat.

Morgan W said...

1.Food chains are how marsh life is interconnected.Food chains also progress where an animal depends upon those beneath.Food webs are when each level is gathering food.
2.If a disease killed most of the kelp the organisms would not have any food left and the population would go down and stay down.If a disease killed it the population would not come back up and would stay down.

Kayla p said...

1.A food web is what animals eat each other a food chain is what animal's are at the top and what one's are at the bottom 2.The food chain would get smaller and some of the organism's might die so it would mean they would have to eat other things in the food chain

Rhiannon T. period 2 said...

1.A FOOD CHAIN is when one organism depends on the organism below it.And a FOOD WEB is when many organisms are eating each other.

2.If the kelp died many organisms would die too which would cause other organisms to die.It would bring the population of many organisms to go down.

jessica s said...

1.a food chain is a line of progression where one animal depends upon those beneath it in the chain for food and a food web are complex relationships which may include many organisms at different food levels so food chain depends on the one upon and food web is it includes different food levels.
2.what would happen is the sea urchent would not have anything to eat so the population would go down then corline would go down and crabs and octipuse

jessica s said...

1.a food chain is a line of progression where one animal depends upon those beneath it in the chain for food and a food web are complex relationships which may include many organisms at different food levels so food chain depends on the one upon and food web is it includes different food levels.
2.what would happen is the sea urchent would not have anything to eat so the population would go down then corline would go down and crabs and octipuse.

Takaira c said...

1.)food web is when you talk about what do they eat a food chain is when you talk about what animal eat what animal.

2.) if most of the kelp was killed the food chain would get smaller than it was before

garrett s said...

a food web depends on many different animals to survive.a food chain depends on one animal to survive.
if something came in and ate all the kelp many animals would die.

garrett s said...

a food web depends on many different animals to survive.a food chain depends on one animal to survive.
if something came in and ate all the kelp many animals would die.

Brockman H said...

1. The difference between a food web and a food chain is that a food web is a relationship between many different animals. A food chain is a relationship between not as many animals because a food web has more relationships.
2. The organisms that eat the kelp would die and then the organisms that eat those organisms would die as well.

DylanH said...

1. A food chain looks like a line and a food web looks like a web.


2. If a disease killed all the kelp all the animals in the food chain would died.

michelle m. said...

1.a food chain are shaped lie webs and food webs are shaped like a pyramid.
2.if most of the kelp died the number of kelp would go down and the number the sea creatures that eat kelp would go down and there would be no kelp

brooke.m said...

1. food chains are lines of progression where one animal depends on the one beneath in a food chain for food.a food web shows how other organisms eat each other and how it keeps going on.
2.there will be no more kelp because there would be a disease that would kill most of the kelp.

Keyshawn G. said...

1.A food is with with many types of organisms. Food chain has only on a little of organisms.

2.The food chain could get so, smaller that is may become a food web

cloderson charles said...

1.food webs show what catigory an animal is in food chains show what type of animals eat others

2.the fish that eat kelp would die out then the fish that eat that fish will die out and so on the population of other fish would drop

BrandonS said...

1.A food chain is where an animal depends upon another animal for food. A food web however, is more complex based upon it's relationships. For example, a lot of different animals may eat a bunch of animals and in turn will be eaten by a lot animals itself.
2.Other animals who eat kelp would die. Once that animal dies other animals who eat that organism would die and so on and so forth.

Matt W PD 8 said...

1. Food chains are lines of progression where one animal beneath it in the chain for food.Food webs are complex relationships which may include many organisms at each level of food gathering

2.Animals that eat it kelp without it will die

sam s said...

A food web can have more than one "top", and a food chain can't.

If almost all the kelp died, then the animals that ate kelp would die, and than the animals that ate the animals that ate the kelp would die, so on and so forth.

Camryn P. Period 8 said...

1.A food web is a relationships of each animal that relates to lots of other organisms or animals.A food chain is when an animal depends on another animal to survive.Like frogs depend on flies to survive.They give them food.With out food they would die.
2.If a disease killed kelp many of the organisms would die.Some eat kelp and with out kelp they would die and the animals that eat that would die because they would be dead.But not all the time some of them eat other organisms as well but not a lot.The food web would get smaller and smaller if this happened.

dannicha v said...

1. The difference between a food web and a food chain is they have the same things and same objects. The Food web is made up of many food chains.
2. The animals that eat the kelp will die.

Tabitha B. said...

(1) A food web is when all the animals (that they are talking about,)are conected by lines to show who eats who. A food chain is when the animals are inline with each other to show who eats who.
(2)
If most of the worlds kelp died then the other animals would die to unless they changed from kelp to Coralline Algea,Diatoms,or Dinoflagelltes instead of Kelp

EricJ said...

1. A food chain is a illustration about how one organism depends on other organisms.

2.If a disease killed the kelp the organisms population would get smaller.

savannaw said...

1.A food web has many organisms a food chain has only a few organisms 2. If a disease killed most of the fish the population would go down an other fish will starve to death.

Anonymous said...

they are different because a food chain is whut kind of food thay eat. 2.the fish mith start eating each other

kiersten c said...

1. A food web is with many organisms and a food chain is with a couple organisms.

2. if the kelp got a disease it would make the populatation decrease.

kayla a said...

1. a food chain is a illustration of larger organisms eating/depending on smaller organisms under it.

2.if the kelp got diseased the population of organisms would go down since they lead up to bigger organisms and the population would not change until kelp populations got larger.

onyae m said...

1.) A food web has all different organisms and all the organisms eat other organisms. A food chain is all the animals eating one particular thing.
2.) If a disease killed most of the kelp there wouldn't be as many animals in the oceans because they wouldn't have something to eat and they would die.