### process | secretion:

Nectar
* Most nectar attracts ants
  - bees
  - butterflies
  - insects
  - parasitic wasps
  - pests
  - feeds hummingbirds
  - gives energy
* Most nectar is produced by flower plants
  - secreted by plants
* Most nectar produces flowers
  - honey
* Most nectar provides food
  - sugar
* Some nectar appears on the staminodes.
* Some nectar attracts birds
  - moths
  - prey
  - contains minerals
  - flows through holes
  - has low protein requirements
* Some nectar is produced by trees
  - secreted by lips
  - plants support butterflies
  - provides energy
  - reduces fitnesses
* are also good and easier to swallow than thinner liquids.
* can contain other beneficial substances as well.
* comes from deep inside flowers.
* contains amino acids , lipids , vitamins and minerals in addition to sugars.
* is fruit juice
  - in flowers, trees and hummingbird feeders
* mixes with enzymes.
  - quick energy to sustain their extremely high metabolic rate and little else
  - simple sugar
+ Spider, Behaviour, Some spiders are not predators
  * Studies have shown that they do this for long periods. They also clean themselves regularly while feeding. These spiders also prefer sugar solutions to plain water, which shows that they are looking for nutrients. Many spiders are nocturnal, they are most active during the night. The extent of nectar consumption by spiders may therefore have been under-estimated. Nectar contains amino acids, lipids, vitamins and minerals in addition to sugars. Studies have shown that other spider species live longer when nectar is available. Feeding on nectar also avoids the risks of struggles with prey, and the costs of producing venom and digestive enzymes.

### process | secretion | nectar:

Sweet nectar
* Most sweet nectar produces flowers.
* is produced in copious quantities, attracting hummingbirds.

Pancreatic secretion
* contain enzymes which are needed to digest proteins, starch and triglyceride.
* occur in the duodenum.

### process | secretion:

Perspiration
* Most perspiration causes conditions
  - contains impurities
  - removes heat
  - requires heat
* Some perspiration is alkaline but is just as harmful as acid
  - leads to dehydration
* also contains high concentrations of salt, creating a hypertonic environment
  - helps the body eliminate excess heat
* beads on nervous foreheads.
* can also damage the hearing aid.
* carries toxins out with it.
* causes a desire to bathes
  - lysozyme and other antimicrobial substances
* depletes cells of fluids and weakens the muscle tissue.
* dissipates excess heat and cools our bodies.
* exacerbates skin conditions such as dermatitis.
* expends water which comes from body tissues and, during long exercise bouts, the blood.
* increases the risk of frostbite and hypothermia
  - to cool the body
* is natures most efficient cleanser
  - one of nature's ways of helping the body rid itself of extra heat
  - produced by sweat glands in the skin and is secreted through pores
  - salt water which very good conductor of electricity
  - salty water, but people tend to drink back regular water
* is the body's attempt to cool itself
  - way of cooling itself
* keeps that heat under control.
* makes silk yellow.
* moves more easily through two thin layers than it does through one thick layer.
* occurs even in cold weather
  - in order to cool off the body by releasing warm water, etc
* plays a vital role in regulating human body temperature.
* problem with slip latex, too.
* serves as a mechanism for excretion and for regulation of body temperature.
* wastes water.
+ Silk, Chemical properties: Fibers :: Cloth
  * Silk is resistant to most mineral acids, except for sulfuric acid, which dissolves it. Perspiration makes silk yellow.