Precursor
* Some precursors are amino acids glycine, tryptophan, arginine, ornithine, lysine and glutamine.
* are chemicals mixed with other precursor chemicals to make chemical warfare agents
  - that are used to manufacture of narcotics
  - more soluble and can be excreted
  - substances that the body uses to make growth hormones
  - the substances that are converted into neurotransmitters by synthetic enzymes
* build up in blood and cause dementia.
* die in the marrow, and few cells reach the periphery.
* is an indication
  - people
* react in sunlight to form ozone or other photochemical oxidants.

Prediction
* are how theories are tested
  - reasoning
  - statements
* base on climate change scenarios
  - hypotheses
  - initial observations
  - knowledge
* have uncertainty.
* include information.
* involve concepts
  - mathematical concepts
* is an important science skill
  - based in chaos theory and neural networks
  - central to the scientific method
* is the business of prophets, clairvoyants, and futurologists
  - child of prophecy
  - explicit goal of inferential statistics
  - use of knowledge to identify and explain observations, or changes, in advance
  - used in signal encoding and noise reduction
* play a major role in science because they provide a way to test ideas.
* pre-reading skill that helps with comprehension when the child begins to read.
* refers to self-analysis and mental conditioning.
* search for laws on which to base a forecast.
* show patterns.
* skill taught usually in science and reading lessons.
* support hypotheses
  - notions.
  * A 'prediction' statement that someone makes about what they think is going to happen. It is often very helpful to know what is going to happen to help prepare for these future events. Predictions are based on the idea that two beginning positions that are like each other will have similar results. By watching something happen, it is possible to predict what will happen if something similar happens. Predictions are given by science or fortune tellers or horoscopes

### prediction:

Climate prediction
* Some climate predictions indicate salinity.
* can also aid in long-term decision making about equipment and infrastructure.
* help assess the potential for severe drought and fires.

Successful prediction
* are the way science works.
* is the ultimate test whether science is in accordance with reality.

Weather prediction
* Most weather predictions involve mathematical concepts.
* are located in newspapers.
* can be a life-saving tool.
* involve concepts
* is chaos theory in action
  - important to promoters of large outdoor sports events
* relies on models.

Word prediction
* is assistive software that functions similarly to macros.
* uses built-in dictionaries to predict which word is being typed.

### predominant:

Mononuclear cell
* are predominant.
* infiltrates in spinal root.

### preferred:

Scientific expert
* use best available science
+ Intergovernmental Panel on Climate Change, IPCC structure: 1988 establishments :: International environmental organizations :: United Nations specialized agencies :: Climate change
  * The IPCC Panel is made of people from governments and other groups. Scientific experts are preferred. Meetings of the IPCC and IPCC Working Groups are held by members of governments. Non-Governmental and Intergovernmenta Organizations may be allowed to attend as observers. Meetings of the IPCC Bureau, workshops, experts and lead authors are by invitation only. February 19, 2006. Retrieved December 20, 2006.

Prehension
* involves grasping for an object that is in front of the body.
* is control

### prehension:

Clasp
* are closures
  - fasteners
* are part of bags
  - bracelets
* is prehension