What if organisms need the same resources?

What if organisms need the same resources?

When two organisms compete or fight for the same limited resource such as food, shelter, a mate, or sunlight, there is usually a winner and a loser (+ -), but if the competitors fight literally to the death and kill each other, the interaction has become negative for both (- -).

What is it called when species share resources?

Intraspecific competition occurs when members of the same species compete for the same resources in an ecosystem. A simple example is a stand of equally-spaced plants, which are all of the same age.

What do all living organisms require to survive?

Living things need need air, water, food and shelter to survive. There is a difference between needs and wants. Students will be able to identify the four things that organisms need to survive.

What are the effects of interactions among organisms in their environment?

Mutually beneficial relationships can increase the populations of both species interacting. And the organisms influence their environment, shaping Earth’s surface and the resources available to ecosystems. Thus, interactions among species are a major component of how like on Earth persists and evolves through time.

What interaction occurs when both organisms benefit in the relationship?

Mutualism is a symbiotic interaction where both or all individuals benefit from the relationship. Mutualism can be considered obligate or facultative.

What are the effects of interactions among organisms?

Why do organisms sometimes have to compete for resources?

Organisms compete not only with Organisms of the same species but also with other Organisms of other species. There is never enough food or space to support all the organisms in a given environment.

What happens when one species lives with another?

Commensalism happens when one species lives with, on or in another species, known as the host. The host species neither benefits from nor is harmed by the relationship. For example, various species of barnacles attach themselves to the skin of whales. It does not appear to bother the whales.

How does an organism depend on other organisms?

Organisms depend on other organisms and on the nonliving things in an ecosystem to meet their basic needs for food, water and protection. Plants use energy from the sun to produce their own food from air and water. The type of soil, amount of water and temperature range in an area determine the plants that grow there.

How does the host species benefit from this unlikely relationship?

The host species neither benefits from nor is harmed by the relationship. For example, various species of barnacles attach themselves to the skin of whales. It does not appear to bother the whales. How do the barnacles benefit from this unlikely relationship?