This red kangaroo and this alpine newt both have a femur bone in their back limbs. However, their femur bones are very different. The red kangaroo has long femur bones that help it jump very far. The alpine newt has short femur bones that help it swim. What most likely explains why both have back limbs with a femur and why the femur bones are different ?

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

i think the answer would be d

satellites are frequently used to make observations of the orbit on earth

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high