Glossary

Reset Glossary
prokaryotes

Subject: 

  • Life Sciences

unicellular organisms that do not have a proper nucleus or membrane bound organelles.

Related Content

peripheral nervous system
Subject:
Life Sciences

the nervous system outside the brain and spinal column.

lignin
Subject:
Life Sciences

a complex chemical compound that fills the spaces in the cell wall between cellulose, ...

organ donor
Subject:
Life Sciences

an individual who donates an organ for the purpose of transplanting it into another person in an...

micro-nutrients
Subject:
Life Sciences

simple inorganic chemical substances (mineral salts) that are needed in very small amounts for...

tar
Subject:
Life Sciences

a black substance that coats the lungs of a smoker, causing cancer of the respiratory tract.