Some biotic factors include...

1) Great white sharks

2) Killer whales

3) Swordfish

4) Blue Ringed Octopus

5) Coral

Abiotic factors include...

1) Water

2) Sunlight

3) Soil

4) Water temperature (-1.4 degrees Celsius)

5) Climate ( warm in the summers and cool in the winter with relatively low temperature range)

Carrying Capacity-

Carrying capacity is the largest number of individuals of one species that an environment can support.

Resources animals need to survive are food, water, shelter, and space.

One of the many organisms in the ocean is a sea lion. Global warming is affecting the sea lions because the ice in the arctic waters are melting very fast. The sea lions cannot reproduce as well without the icy platform to support them. Also, global warming is causing areas of water to dry up which means that their natural habitat is disappearing. The sea lions population will keep changing until there is less global warming.

Limiting factors & predator/prey relationship:

Limiting factors are anything that affects the survival of an organism in an ecosystem.

Some limiting factors in the ocean are the intensity of sunlight, climate, global warming, and water pollution.

A predator/ prey relationship in the ocean are sharks and dolphins. If a limiting factor such as water pollution affect the sharks, the dolphins might overpopulate. However, if the limiting factor affect the dolphins, the sharks population may decrease.

energy roles:

A producer is an organism that makes their own food by photosynthesis. Some producers in the ocean ecosystem are algae, seaweed, and kelp.

A consumer is an organism that feeds on other organisms because they cannot make their own. Some consumers in the ocean ecosystem are krill, dolphin, orcas, and shrimp.

A decomposer is an organism that breaks down waste and dead organisms and return the nutrients back to the environment. Some decomposers in the ocean ecosystem are sea slugs, marine worms, and brittle stars.

Each of these energy roles receive its energy from the previous organism.

Producers are the base of each ecosystem and contain the most energy to pass on.

Food chains & food webs:

Food webs are more realistic than food chains because a food web shows multiple organisms that live in an ecosystem and the different foods one organism can eat.

If, for example, the population of diatoms were gone from this food web, the population of krill and tiny water animals would decrease fastest. Then, the other organisms in the food web would slowly disappear because of lack of food.

trophic levels & energy pyramids:

The pyramid shape is most useful because it represents how energy is decreasing and becoming less available as you move up.

Producers are at the base because that is where most of the energy is stored and producers are the starting point of all ecosystems. The top predators have the least energy and depend on everything below it in an energy pyramid.


Chemical Equation:

CO2+H2O----->C6H12O6+ O2

For photosynthesis to take place, carbon dioxide, water, and sunlight is needed. After photosynthesis takes place, glucose and oxygen is produced.

Photosynthesis takes place within the plant's chloroplast to produce glucose.

Radiant energy turns into chemical energy during photosynthesis.


Tropism is the movement of an organism towards or away from an external stimulus, such as light, heat, water, or gravity.  

Geotropism can be found among producers in the ocean ecosystem. For example, an algae's holdfast (a root-like structure that anchors the algae to the ocean floor) holds it down. This is positive tropism. Also, the seaweed itself grows upward which is negative tropism because it is growing away from gravity.

Another type of tropism in the ocean is phototropism. All plants need sunlight and grow towards it.

These tropisms help the plants of the ocean to survive because the tropisms allow the plant to get more of sunlight, water, etc.

the role of decomposers:

Decomposers are important in the ocean because they are needed to break down materials and release nutrients back into the ground. Without decomposers, all the dead plants and animals would be left to waste away. The soil wouldn't be as rich, and less plants would grow which would eventually effect everything in the ecosystem.

Some decomposers in the ocean are sea slugs, marine worms, and brittle stars.


Structural, functional, and behavioral adaptations all help the organism gain the necessities and resources they need to survive in their ecosystem.

Adaptations that plants and animals would need in my environment:

1) camouflage

2) fins

3) gills

If an organism in my environment was placed into a different environment, it wouldn't survive because it wouldn't have the necessary adaptations needed to find resources.

natural selection-

Natural selection is the process of adaptations in a species over a long period of time. It helps animals and plants survive in their ecosystem over time.

An organism that has been naturally selected in the ocean is the stingray. They have flat bodies to help them move along the water. Also, they have camouflage which hides the stingray on the sea floor. Many predators probably made stingrays adapt to living conditions.

dichotomous key:

Sources- http://en.wikipedia.org/wiki/Oceanic_climate



Comment Stream

2 years ago

I would like to know what the temperature of the water is

2 years ago

maybe you could be more specific on the Abiotic factors but over all i love it :)

2 years ago

I agree with this because all of the abiotic and biotic factors are right.

2 years ago

I would like to know more abiotic factors.

2 years ago

I would like to know how much sunlight certain areas of the ocean get👍

2 years ago

I recommend you put more details of the abiotic factors

2 years ago

i agree with it because it has good info

2 years ago

I think you could add more pictures. 😃

2 years ago

I like your pictures, the oceans should include more specific factors