Answer: The nervous system
Explanation:
The first part of the embryo to develop is the neural tube, which will become the spinal cord and brain. As the nervous system starts to develop, the tiny heart starts to pump blood, and other parts of the body—such as the digestive tract and backbone—begin to emerge.
Calcium is an important element required for muscle contraction and bone integrity.
1) Physiological need, such as needs for food, sleep, and air
2) Safety or the needs for security and protection
3) Belonging and love
4) Needs for self esteem and self respect
5) Needs concerning creative self growth, engendered from fulfillment of potential and meaning in life
The average weight of a 7th grader is supposed to be 95-105.
Perhaps, it really, really and really depends on your sex, age and the food you eat.
For boys that are aged 12 to 13 in 7th grade, their weight should be an average of 96 - 110
For girls that are aged 12 to 13 in 7th grade, their average should be 95 to 108...since many girls don't like eating too much food and hate getting fat! :D
Btw, if you might ask me, I am 14 in 10th and weigh 75 pounds, I am really skinny, I hate food, and do some push-ups and other excersices in the morning (this is one way you can loose weight)
So what about you?
