Answer: space or shelter, ability to reproduce
Explanation:
The answer is c. they live in conditions similar to those likely to be found on other planets.
Molecular biologists are interested in things like the level of gene expression (how much protein or RNA is present at any given time), which molecules are directly touching each other inside the cell, etc. ... Cell biology techniques, on the other hand, want to know what's going on inside intact cells.
( Try to see which one sounds best after reading this)
Answer:
To measure motion, you must be able to compare it to a reference point, or a non moving point.
