Are organisms that have evolved to survive in environments once thought to be entirely uninhabitable

A temporary protrusion of the surface of an amoeboid cell for movement and feeding

A group of organisms that contain chlorophyll, can be uni or multicellular. Ancestor of the plant kingdom

They are prokaryotic and represent the earliest known form of life on Earth

An organism, typically a bacterium, that derives energy from the oxidation of inorganic compounds.

A bacterium with a rigid spiral structure

Any spherical or roughly spherical bacterium

Relying on the environment to move

The protein coat or shell of a virus particle, surrounding the nucleic acid

Outer layer of some viruses derived form plasma membrane of the host cell

A type of microscopic plankton capable of photosynthesis found in oceans, seas, and freshwater, and an essential component of aquatic ecosystems.

A microorganism which grows in the presence of air or requires oxygen for growth

Protein on the envelope of viruses, used to attach to host cell

A single-celle microscopic animal of a group of phyla of the kingdom Protista

An organism that grows without air, or required oxygen-free conditions to live

A rod-shaped bacterium

A substance used to stimulate the production of antibodies and provide immunity against one or several diseases

Obtaining energy from sunlight as its source of energy

The destruction of the infected cell