1. Terrestrial Ecosystem
By: Myla & Kaytia

2. Example of Terrestrial Food Web
2nd level Carnivores or Tertiary consumers.
1st level Carnivores or Secondary consumers.
Herbivores or Primary consumers.
Producers
(Another word for producers and consumers are Autotroph
and Heterotroph.)

3. Comparing Relationships
Producer/Consumer: Grass/Rabbit
Predator/Prey: Wolf/Rabbit
Parasite/Host: Heart Worms/Dog

4. Commensalism, Parasitism, & Mutualism
Benefits one species without the other species being harmed.
Mutualism:
Benefits both species.
Parasitism:
Benefits one species, but harms the other.
They only benefit one species.
They don’t harm the other species.
Has Benefits
They don’t have anything.

5. Food Chain
The grass is eaten by the rabbit and the rabbit is eaten by the wolf.
Wolves
Rabbit
Grass

6. How does energy flow in an ecosystem?
The grass is the producer which produces for the consumers.
When the animals(consumers) such as: rabbits and deer come and eat the grass it gives the animals energy and provides nutrients for them.
The consumers are then eaten by the predators(lions, wolves…..etc. ) ,which gives the predator the nutrients that is needed for its body as well.
Then this same process happens all over again.

7. What are differences between a predator /prey relationship and a symbiotic relationship?
A predator/prey relationship often has one species that must die for the other to benefit.
In a symbiotic relationship there can be a time where both species can benefit, but in a predator/prey type of relationship that can’t happen.

8. The choice of our organism is a Plant.
Sunlight: A plant competes for sunlight because it needs the right amount of sunlight in order for it to grow.
Water: Plants compete for water because plants also need water to grow healthy and properly.
Soil Nutrients: Plants compete for soil nutrients because if the plant does not have healthy soil then the plant won’t be as healthy and it wont have all the nutrients that helps it grow.
Living Space: Plants compete for living space because if it doesn’t have the right amount of space then it will be crowded and wont have room to properly grow.
Biotic Factors: Plants compete for resources because without the resources that are needed for the plants it will most likely die before it even gets to grow.

9. Limiting Factors
A limiting factor is when it controls its own process and if it’s going to be limited it has to be running out of that factor or low on that factor. For an example: The sun could be a limiting factor; it would limit the plants growth.

10. A Freshwater Ecosystem:
Biotic Factors
The log, sediments, and rock.
Abiotic Factors
Frogs, deer, eagle, raccoon, dragonfly, fishes, and plants.

11. The Affect of Canadian Squirrels Mating Season Changing:
It would affect the squirrels because the squirrels start breeding season earlier to stay on schedule with or according to the season changes, and they start gathering up food earlier so they can be prepared when winter season comes around.

12. What effect can pesticides have as it moves up the food chain from producers to top predators?
If pesticides were at the top of the food chain most likely the results would be a major decrease in the animal population because pesticides means to destroy insects and other organisms, so it would be harmful not only to the population of the animals, but also to the animals, insects, and any other biotic factors or organisms.
How will human activities be harmful to the ocean?
Human activities would be harmful to the ocean because 12% of pollution is from spills from shipping, 10% from dumping waste right into the ocean, 44% is from runoff, 33% is from pollutants on land, and 1% is from drilling for resources. Humans also typically think that everything's okay or people are being dramatic, but it is simply because we don’t care and some people think that it’s not going to affect us, but when you really think about it, if we humans keep on treating our oceans this way it’s also limiting our water supplies and if the fish die it maybe is limiting our food supply as well.