episode 1 Characteristics of Organisms

Autotroph

An organism that makes its own food 677

Heterotroph

An organism that cannot make its own food 685

Unicellular

Made of a single cell 696

Multicellular

Consisting of many cells 688

Prokaryotic

An organism that can lacks a nucleus and some other cell structures 692

Eukaryotic

An organism whose cells contain a nucleus 682

sexual reproduction

A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents 694

asexual reproduction

A reproductive process that involves only one parent and produces offspring that are identical to the parent 677

Photosynthesis

process by which plants and some other organisms use light energy to make food from carbon dioxide and water 691

Chemosynthesis

Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates