Question

I want detailed explanation before the test of (biology) Endocrine system and Adolescence, Circulatory system, Nervous system, Health and Hygiene, First Aid. Please​

Answer 1

Explanation:

Adolescence (from Latin adolescere, meaning 'to grow up')[1] is a transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood (age of majority).[1][2][3] Adolescence is usually associated with the teenage years,[3][4][5][6] but its physical, psychological or cultural expressions may begin earlier and end later. For example, puberty now typically begins during preadolescence, particularly in females.[4][7][8][9][10] Physical growth (particularly in males) and cognitive development can extend into the early twenties. Thus, age provides only a rough marker of adolescence, and scholars have found it difficult to agree upon a precise definition of adolescence.