Q:

What is an organism?

A:

An organism is a living entity composed of many interrelated components that work together to achieve a common goal. Organisms come in a wide variety of sizes, shapes and lifestyles, but they all share some similar traits. All organisms require food and excrete waste, grow, reproduce and, ultimately, die.

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Animals are the most obvious types of organisms. Animals are the most mobile and active of the organisms, and they include such species as humans, sharks and ants. Each has evolved survive in their particular niche.

Plants are one of the largest groups of organisms, and they form an important part of the food chain. Plants are called “the producers” of the living world, as they harness sunlight and turn it into a form of chemical energy. Called photosynthesis, this process enables the entire food chain to function.

Bacteria are some of the most numerous organisms, as they live on virtually every surface on planet Earth. Bacteria are very simple organisms, and their direct ancestors may have been some of the earliest forms of life. Many bacteria are beneficial and necessary for life, while others can be very harmful. Other types of organisms include protozoa, algae and fungi. Scientists disagree over whether viruses are organisms.

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Related Questions

  • Q:

    What is behavioral adaptation?

    A:

    Behavioral adaptation is the process by which an organism or a species changes its pattern of action to better suit its environment. It is contrasted with structural adaptation, which is the appearance of physical features that confer an advantage upon a species.

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  • Q:

    What is structural adaptation?

    A:

    Structural adaptations are the physical features of an organism that help it to survive and succeed in its environment. Structural adaptations can affect the way the creature moves, eats, reproduces or protects itself.

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    What is physiological activity?

    A:

    Physiological activity refers to the normal function of an organism. It may refer to specific organs or the organism as a whole.

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  • Q:

    What are the rules for writing scientific names of organisms?

    A:

    When writing the scientific names for organisms, which are written in Latin, the name for the organism must contain two parts. The first part, genus name, is written in italics and is capitalized. The second part, epithet, or a specific description of the species, is italicized, but not capitalized.

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