Types Of Organisms

Types Of Organisms

What are all the different types of organisms?

• Plants

• Animals

• Fungi

• Monera (Bacteria)

• Protists

​The five main types of organisms are:

Each type of organism listed in the previous slide is a domain. Organisms need to meet certain requirements to classify as a certain domain.

For an organism to classify as an Animal, it must be multicellular and eukaryotic. A multicellular organism is any organism with more than one cell (multiple cells). All animals are heterotrophs, which means they rely on other organisms for food.

For an organism to classify as a Plant, it must be multicellular, eukaryotic, and is most commonly an autotroph.

For an organism to classify as a Fungus, it must be eukaryotic and a heterotroph. Some Fungi are multi-cellular, like mushrooms or mold, while other Fungi is unicellular, like yeast.

For an organism to classify as Monera or Bacteria, it must be prokaryotic, unicellular, and can be either an autotroph or heterotroph.

Multiple Choice

Cindy, is trying to figure out what an organism is. Her organism is eukaryotic, multicellular, and autotrophic. What should Cindy infer her organism is?

• Animal

• Monera

• Fungi

• Plant

Vocabulary

• ​Unicellular-An organism comprised of a single cell

• Multicellular-An organism comprised of two or more cells

• Autotroph-An organism that produces its own food

• Heterotroph-An organism that relies on other organisms for its food

• Eukaryote-A type of organism with a membrane-bound nucleus

• Prokaryote-A type of organism that lacks a membrane-bound nucleus

Multiple Choice

Arnold is studying an organism. He observes that it only has one cell. Which of the following must be true if Arnold's organism has only one cell?

• It is unicellular

• It is multicellular

• It is prokaryotic

• It is only not a fungi