### silver-gray liquid:

Mercury metal
* has many uses.
* silver-gray liquid.

Similar phenomenon
* Similar phenomena are observed in many other herbs whose flowers or fruit are destroyed by frost.
* Some similar phenomena occur in plants
  - proteins

### similar reaction:

Overprotection
* is protection
* similar reaction.

Biological virus
* are similar.
* fragment of DNA inside protective jacket.

Similarity
* Many similarities exist between medication error reduction and infection control.
* Similarities are the basis for classifying different kinds of organisms
  - do exist between pigmented cosmetic dermatitis and pigmented contact dermatitis
* central component of many cognitive processes.
* continuous measure of imperfect symmetry.
* is based on visual characteristics such as dominant colors, shapes and textures
  - central to the concept of scaling
  - simply a distance measure based on the relative number of mismatching features
* plays an indispensable foundational role in theories of cognition.

### similarity:

Analog
* are software.
* come in a variety of shapes, sizes and applications.
* is similarity
* usually take the form of white powder.

### similarity | analog:

Meat analog
* Some meat analogs are high in salt.
* are a convenient way to add additional sources of plant protein to the vegetarian diet
  - lower in fat and saturated fat than meat

Nucleoside analog
* All nucleoside analogs are pro-drugs.
* are effective, as are protease inhibitors
  - prodrugs that are converted into active agents by phosphorylation

Analogue
* Some analogues have no amino group at all, such as benzocaine.
* are similarity
  - substances that act in a similar way to hormones
* is similarity

Distributional similarity
* is computed from a standard natural language corpus.
* useful notion in estimating the probabilities of rare joint events.

### similarity:

Homology
* Homologies are characters that are similar because of common ancestry
  - essential clues to relatedness
  - more reliable for phylogenetic inference than are analogies
  - parallel evolutionary patterns that come from common ancestry
* clear indication of shared structure and frequently related function.
* includes a unique group of shared structures referred to as vestigial structures.
* indicates a similarity established through common descent.
* is always complicated by the potential fusion of remote individual domains
  - likeness due to shared ancestry
* is similarity by descend
  - in different species due to evolution from a common ancestor
  - structures having arisen from a common ancestor
* is the presence of a similar feature because of convergence
  - relationship between structures or DNA derived from the most recent common ancestor
  - similarity due to common ancestor
  - study of similar structures in different animals
* refers to evolutionary related sequences stemming from a common ancestor.
* structural similarity regardless of present day function.
* word that comes from comparative anatomy and embryology.

Parallel
* is when the planets are within one degree of orb in declination.
* laminae represent the bar surface.

### similarity | parallel:

Tropic
* are latitudes.
* experience a radiation surplus.
* gain more energy then they lose, while polar regions loss more than they gain.

### simple asphyxiant:

Gaseous nitrogen
* contains covalent molecules.
* is gases
  - nitrogen
  - used in the chemical and petroleum industries for storage tank blanketing
  - useless to plants
* makes up three-quarters of the atmosphere.
* simple asphyxiant.

### simple economic activity:

Mercantilism
* is economy
* simple economic activity.

Simple organism
* Some simple organisms contain chlorophyll
  - live in habitats
* are models for gene function in complex organisms
  - unicellular, but more complex organisms consist of many co-operating cells