I would say 1,2,&4 because bones cant protect organs from bacteria or sunlight.
It introduces you to new information, which will you will need in the long run.
Answer: Stage 3- Identification
It is the stage in the development of the infant (by two years old) where "self-awareness" comes into play, Infants can identify themselves in a mirror as well as begin to use language to refer to themselves. Infants also become aware of the surroundings.
Answer:Most of the research on the costs and benefits of treatment has been done on employees with depression. The studies have found that when depression is adequately treated, companies reduce job-related accidents, sick days, and employee turnover, as well as improve the number of hours worked and employee productivity.
Explanation:
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