Scientist study index fossils so they will get an understanding of what life was like back then.
Answer:
proton
Explanation:
no charge, it weighs 1 amu
Answer:
soluble molecules
Explanation:
Soluble molecules dissolve completely when mixed with water, hence forming a solution
Answer:
Forelimb protraction starts with a rapid flexion of the shoulder joint bringing the humerus close to its maximum cranial rotation angle, almost in parallel to the mid-sagittal plane. This position has already been reached by the middle of the swing phase.
Answer:Blue rays and octopus are more closely related
Explanation: