Ralph and harry are identical twins who were raised apart and reunited as adults. what can we likely say about them?

What could likely be said about them is that even though they are raised apart, they are still related in blood and the fact that they are brothers means that they may have some characteristics that they may have inherit with their parents.

That is an interesting questions and many experts have concluded that while they both share the exact same genetic material, the environment where they grow, the experiences they had, nutrition and values inculcated on them will be different and in fact, now that they are adults and they share the same body characteristics they will think, act and understand life in very different terms.

Explanation:

Think about this: they both have the same genes related to height  and metabolism. however; Harry grew up but he did not eat nutritious food because of his adopted parents lifestyle. On the other hand, Ralph received the best quality food and it was all organic and healthy. This would explain why Harry is shorter  and fatter than Ralph and why Harry gets sick more often than Ralph.  

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

i am positive it is c. condensing but i may be wrong