### important measurement:

Total phosphorus
* includes organic phosphorus and inorganic phosphate.
* is an important measurement
  - measured directly
  - nearly uniform in concentration throughout the water column
  - the sum of soluble phosphorus and phosphorus attached to sediment

### important nursery grounds:

Riparian wetland
* are important nursery grounds.
* occur in the floodplain adjacent to streams and rivers.

Important physical elasticity
* Elasticities measure the effect from a proportional change in a vital rate on e r.
* Elasticity branch of solid mechanics that deals with the elastic behavior of solids
  - characteristic quality of fufu
  - describes how quickly the molecules return to their original positions
  - equals stress divided by strain
  - exists if a price change results in total revenue change in the opposite direction
  - increases with availability of substitutes
* Elasticity is an important physical property
  - bi-directional
  - concerned with the deformation of solid bodies in response to applied forces
  - dispositions
  - imparted by a network of elastic fibers
  - one important attribute of adipose and areolar types
  - physical properties
  - relative price sensitivity
* Elasticity is the energy fraction of the most energetic secondary
  - mathematical representation of stress and strain in materials such as steel beams
  - measure of how responsive something is to influence in a market
  - opposite of distensibility
  - key to durability
  - measure of responsiveness
* Elasticity refers to choices people make when confronted with congestion or perceived congestion
  - material deformation behavior under applied force
  - the ability of a string to stretch
  - topic of great concern in earth sciences
  - useful summary measure of demand
  - usually changes along a demand curve - even when the demand curve straight line
+ Category:Elasticity (physics): Physics
  * Elasticity is a branch of solid mechanics that deals with the elastic behavior of solids. It is the property of material of a body which regains its original shape and size.

### important physical elasticity:

Bounce
* are error that are returned by various mail servers when addresses or hosts are unreachable.
* causes bounce.
* differ in size and longevity.
* is elasticity.

Give
* plants their shape and ability to stand up.
* rise to genetic diversity
  - muscle, bone and blood among other tissue
* rise to the diversity of cell types in multi-cellular organisms
  - superior labial artery
  - transverse facial artery
+ Greater Blue Mountains Area, Vegetation, Vegetation types: Geography of New South Wales :: World Heritage Sites in Australia :: Australian National Heritage List
  * Gives rise to clumps of smallish eucalypts.

Income elasticity
* Income elasticities measure how trade responds to changes in the real value of national income.
* measures the change in demand caused by a change in income
  - consumers' response to a change in income

Price elasticity
* is one of the major working tools of economists
  - related to marginal revenue , and to total revenue
* is the impact of price changes on sales volume
  - measure of how demand stretches with regard to a price change
* measure of the responsiveness of quantity demanded or supplied to price.
* measures the responsiveness of demand to price changes.