Answer:
scientist can learn how the rat has evolved based on where they live. it also helps find what the common ancestor was and all the common traits they have, for example rats in Norway may be used to the cold. and the rats in africa need to adapt to the heat and the constant threat of them being eaten.
Kidneys, Bone Marrow, and it Produces red blood cells.
2.5 kilsos because if you double that it goes to 5 kiilos.
Answer:
some of it sis transfered into the of the box
Explanation:
There is a kinetic energy upon moving the box thus will be force moving and the mass of the box converted to newtons
