The Ocean

Biotic Factors: Living factors in an environment

animals: sea turtles, sharks, dolphins, krill, jellyfish, fish, killer whale, etc. 

plants: coral, kelp, phytoplankton, etc.

Abiotic: nonliving factors in an environment

Water, rocks, cold temperatures, warm temperatures, sunlight, soil, water currents, etc.

Carrying capacity and changes in population

Carrying capacity-the most animals of a species that an environment can hold

Resources animals need to survive-water, food, shelter, and space


In my environment the fish population changes over time. When the fish eggs hatch,thousands of new fish are starting to swim in the big blue. But with the thousands of new fish,thousands of other fish have to die.

Limiting factors and predator/prey relationships

Limiting factors- Any factor/condition that limits the growth of a population in an ecosystem.

Ex:fishing equipment, change in water temperature, etc.

Predator/Prey: shark/fish, fish/plant, whale/krill, etc.

Limiting factors can effect the predator/prey relationships because if there is a change in the climate that kills off a certain plant, the fish that eats that certain plant won't have food and they'll die off, which would cause the competition for food to rise with the sharks and other higher leveled animals.

Energy roles

Energy roles- are determined by how the organism gains energy

Ex:Producers- coral, seaweed, etc

consumers- fish, sharks, whales, dolfins,

Producers are vital in an ecosystem because without plants(producers), the first level consumers wouldn't have any food and die off,and if the first level consumers die off, then the secondary consumers will also die off from no food, which would also lead to the third level consumers dieing as well.

Food chains and Food webs

Food webs are more realistic then food chains because food webs give a lot more info on what eats what and a better variety of animals in that particular ecosystem.

Now lets say you removed shrimp from this food web.Without shrimp,the squid would die of hunger,which would make the fish die,which would make the turtle die,and so on.

Trophic  levels and energy pyramids

Third level consumers:Carnivores or Omnivores

Second level consumers:Carnivores or Omnivores

First level consumers:Herbivores or Omnivores

Producers-ex: plants, grass, algae, trees, etc.

Producers need to be in the largest level because their are a lot more producers then third level consumers.



Definition:turning or bending movement of an organism toward or away from an external stimulus such as light, heat, or gravity.

Ex-coral moving towards the light, certain kinds of water plants responding to touch, etc.

Trophies are pretty important for the plants in all ecosystems If plantsdidn't move towards the sun then they wouldn't last long, and if different plants didn't react to touch they could die off.


Decomposers are an extremely important part in my environment because they get rid of all the waste in the ocean. Without decomposers the ocean would be floating in disgusting,gross waste products and dead organisms.

Some decomposers in my environment are: Bacteria, fungi, shrimp, catfish, etc.


Adaptations are super important when it comes to surviving in an environment. Adaptations don't only help them survive, they help them thrive. Without adaptations, many of our favorite animals wouldn't be here today.

Adaptations in the ocean-

*some fish have to change color or have a specific pattern to hide from other animals

*some ocean creatures have to adapt to warmer/colder water temperatures

*some creatures have adapted to swim faster and cut sharp corners to either swim away from predators or hunt for food.

* the clown fish (nemo), has adapted to not feel the sting of it's home, the anemone

Well, honestly, if you put a fish in the desert, in would definetly die, but besides that, it would become an easy target to other predators since it can't blend in with the environment.

Natural selection

Definition:Is the process by which certain inheritable traits become more common in a population over successive generations.

Natural selection is important for organisms because without it the important traits that could help that species survive wouldn't be passed down and that species would die out.


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2 years ago

@angelalangford thank you for your kind words!

2 years ago

You get it girl. You did so good on this thing. I loved it. Keep up the good work!

2 years ago

@gracepowell thank you so much!

2 years ago

@laurencochran Great job! Nice chart about the fish, it really added to your Tackk!! 🐠 🐟 🐠

2 years ago

@briannasepulveda thank you so much!

2 years ago

Nice chart you have good information to go along with it 🐠

2 years ago

thank you!😙 🐬

2 years ago
2 years ago

I like the picture of the shark

2 years ago

@fabianhernandez thank you!!