<span>I think I'd go with this one: Central nervous system - processes information and controls responses. It looks like correct pair.</span>
There are multiple reasons. 1) there are similar fossils found on different continents. 2) the continents shapes show that they could easily fit together. 3) there are similar rocks, minerals,and land forms on different continents. 4) there's evidence that there was once lush vegetation in areas with extreme cold.
A. To understand the nature of an experimental subject
Tall parents can have a short child, short parents can have a tall child , and two parents of the same height may have a child in between?