Answer: Integumentary.
Explanation:
The integumentary system is the system that protects the body from damage such as loss of water or abrasion from outside. For example, nails, hair, skin, etc.
Answer: appendix is my guess
Explanation:
In some cases yes. Kids tend to learn faster than the average toddler.
The facility that is most cost-effective would be a local doctor at a primary health care center
Squats and lunges
Hope this helps