Harry Frederick Harlow was a psychologist known for his studies on rhesus monkeys. The study focused on maternal separation, social isolation and dependency. The most helpful thing a person can do for a frightened infant or child is to promote classical conditioning to avoid separation anxiety.
The 3 that I chose were balance, coordination, and speed
balance - to keep in a steady position without falling
example: the ability of being able to walk on a tight rope is one way to demonstrate balance
coordination - the ability to use different parts of the body smoothly and efficiently
example: the ability of use your eyes and body during a game of ping pong
speed - how quickly someone can move
example: how quickly a person can run across a field
Possibly a mosquito. If not that a spider, or a beetle. If it swells I would go to the hospital
It’s the endocrine system, hope that helps :)
The answer that you are looking for is A