Two different objects are moving with different velocities until they strike each other, stick to each other, and begin moving together. If each object’s mass is known and each object’s initial velocity is known, then the final velocity can be predicted using the law of conservation of .

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.