Vocabulary part 2

Organelle- any of a number of organized or specialized structures within a living cell.

Tissue- any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.

Organ- a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

Unicellular- consisting of a single cell.

Multicellular- having or consisting of many cells.

Autotroph- an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

Heterotroph- an organism deriving its nutritional requirements from complex organic substances.

Prokaryotic- a single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelles.

Eukaryotic- any organism whose cells contain a nucleus and other organelles enclosed within membranes. Eukaryotes belong to the taxon Eukarya or Eukaryota.