For SpaceX this was a major achievement and it could potentially open up a commercial market for space travel. What do does it mean to have a commercial market for space travel and what benefits could come from having one? Be sure to explain your answer. (100 words or more) *

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

Give an example of a trait that is controlled by more than one gene.

How does a catalyst influence a chemical reaction?