life forms

Creatures that breathe

Life forms are living organisms—any entities that exhibit the characteristics of life such as growth, reproduction, and response to environment.

The term appears frequently in science fiction discussing alien life forms and in biology when categorizing organisms broadly: Scientists search for life forms on other planets.

The singular life form typically refers to a specific type or species: an unusual life form discovered in deep ocean vents.

Related

flora · biodiversity · prokaryotes · living thing · biology · alien · protists · archaea · ecosystem · sentient beings · biosphere · entities · microorganisms · animals · cells · ecology · plants · wildlife

Categories
Opposites
animate vs. inanimate matter

life formsrocks

Solid mineral pieces

minerals · geological formations · crystals · water · dust

organic vs. artificial/manufactured

life formsmachines

Devices that perform tasks

robots · automatons · mechanisms · computers · technology

living vs. dead/extinct

life formsfossils

Preserved ancient organism traces

extinct species · corpses · remains · carcasses · cadavers

Family

life, alive, forms, formation, lifeless, informed, lifetime, lives, lifelong

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G