1. When one symbiont damages another. It is similar to parasitism.
2. The ability of two different types of organisms to exist closely with one another without giving an advantage or disadvantage to the other.
3. The relationship between a free-living lichen and another lichen or fungus which infests it and establishes a symbiotic relationship with the algae of the lichen.
Pathology with emphasis more on the biological than on the medical aspects.
petrobiont (s) (noun)
, petrobionts (pl)
An area where species are living on or among rocks or stones: Chaotic though a bird petrobiont
may appear, it is considered to be an organized, orderly community, where each kind of feathered animal has its own preference as to which location it will have for its nesting on the cliff.
As harsh as the conditions of life on a rocky shore may seem to a human observer, the birds obviously thrive and multiply in their petrobionts.
Mountain goats exist in their special petrobionts and have adapted to dwelling among the rocky formations as mountain climbers!
, more petrobiontic, most petrobiontic
Relating to living in rocky habitats: One example of petrobiontic
areas are mountains which are homes for many different forms of life, including various plants and animals.
The branch of pharmacology concentrating on drug biotransformation and the biochemical aspects of drug metabolism and drug action at a cellular or subcellular level.
A persons life shown in a series of photographs.
1. The study of the effects of light on living things.
2. That part of biology designed to destroy tissues with a concentrated light beam; such as, a laser.
1. In biology, dependent upon light for existence.
2. Used to describe organisms that need light in order to live and grow.
The algal component of a lichen; any alga that is associated with a fungus to form a lichen.
A friendly association between ants and termites.
The study of leaves.
Botany, particularly the life history of plants.
Living within plants; applies to some protozoans.
; more prebiotic, most prebiotic
A reference to the period before the existence of life on earth: For his dissertation at university, Pablo wrote about the more prebiotic conditions on the third planet from the sun, describing such things as gases and explosions.
If you would like to take a series of self-scoring quizzes over some of the words in this bio-
unit, then click this Life, Live, Living Quiz
link so you can check your knowledge. You may also try several additional quizzes
in this listing.
Related life, live-word units: