Answer: When you mix sand and water there are no reactions. The sand sits at the bottom of the water because the sand is heavier than the water is.
The structure that is in the cell's nucleus that contains the genetic information if it is condensed and becomes wrapped and folded with many histone and other proteins, it is called chromosomes.
Humans do have 46 chromosomes, 44 autosomal ones and 2 sex chromosomes.
Answer:
skeletal muscles control his leg movement and cardiac muscles control his heart rate
Fluid filled sacs in the knee are specifically called Bursa or Bursae. Bursae is plural for Bursa.
A bursa is a closed fluid filled sac that function as a gliding surface to reduce friction between tissues of the body. Knee bursitis occurs when there is irritation or inflammation in one one of the knee bursa. The procedure of removing fluid-filled sac is called bursectomy. When the bursa become infected with bacteria, this condition is called septic bursitis.
