That part of the physical environment built or modified by humans.

An estimate setting out for a particular living system the amounts of essential mineral nutrients which are taken up or lost.

The temperature at which an organism grows most rapidly.

The inhibition of gene activity by an efficiently degraded catabolite.

Applied to organisms that produce organic material from inorganic compounds using simple inorganic reactions as a source of energy.

A measure of the amount of chlorine wwhich can be consumed by organic matter and other oxidizable substances in water without a chlorine residual.

The enrichment of a water body with plant nutrients.

The period of growth following the lag phase during which very rapid growth occurs.

Substances discarded as unusable by private households, offices,shops, etc., but not the waste products of industrial processing or manufacturing. Municipal waste is composed typically of paper, organ [..]

The specific part of a habitat occupied by an organism.The role an organism plays in an ecosystem.