Answer to Question 1
Language is:
1 . Communicative: Language permits us to communicate with one or more people who share our language.
2 . Arbitrarily symbolic: Language creates an arbitrary relationship between a symbol and what it represents: an idea, a thing, a process, a relationship, or a description.
3 . Regularly structured: Language has a structure; only particularly patterned arrangements of symbols have meaning, and different arrangements yield different meanings.
4 . Structured at multiple levels: The structure of language can be analyzed at more than one level (e.g., in sounds, meaning units, words, and phrases).
5 . Generative, productive: Within the limits of a linguistic structure, language users can produce novel utterances. The possibilities for creating new utterances are virtually limitless.
6 . Dynamic: Languages constantly evolve.
Answer to Question 2
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This jumping spider's main ocelli (center pair) are very acute.
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Language
Various views of the main body cavities.
Binary Acids and Their Properties
Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet