Word such as 'a', 'an', or 'the' used before nouns. bind to undergo training period.

Fibrous scleroprotein found in elastic tissues such as the walls of arteries.

intellectual and practical activity encompassing systematic study of structure and behaviour of physical and natural world.

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person who is very knowledgeable about or skilful in particular area. Skillful people with special knowledge.

demanding or characterized by careful consideration or application.

Something you say, giving an opinion; remark. To say something that gives your opinion.

Careful thought; thinking about something.

next in time. body of supporters or admirers. coming after or as a result. To understand something happening or being said.

Type of protein that is often used in skin cream and in plastic surgery because it makes skin look younger.

Things you read (book, magazines and web pages). Process of understanding writing. To look at and comprehend the meaning of a text.

action or process of discovering or being discovered. Learning some things for the first time.

reach inside receptacle and search for something.

intelligent and well informed.