Question

Very short-answer questions
1. In which stage of growth does a person learn to
sit, stand, walk and recognise people?
2. Hoarse voice in teenage boys is due to
enlargement of larynx. True or false?
3. Which problems do teenagers face as their skin
becomes oily?
4. Which virus causes AIDS?
5. Endocrine glands release hormones directly into
the bloodstream. Hence what are they called?
6. In whom does the reproductive phase last longer
male or female?​

Answer 1

Answer:

1 --when you are in your childhood

3--age of 13 ,14

4--HIV (human immunodeficiency virus) is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases.