which of these arguments would be made by a supporter of manned space exploration?
a. there are few dangers to people in space.
b. manned missions satisfy the human desire to explore.
c. instruments take up more room on a spaceship than people.
d. manned exploration is cheaper than sending robotic probes.

Manned exploration is cheaper than sending robotic probes.

Explanation:

Any scientific project has first to be faced with its costing. Usually people said the spending which is about billions in space exploration is bad idea but in Manned exploration cost is lesser than others space exploration projects.

There are many problems like terrorism, poverty but manned exploration is quite affordable for country. This kind of projects attracted people’s interest in space researches as well as space exploration.

1. The repeating units in a fatty acid are just carbon atoms. They usually have two hydrogens attached, but can have one (in unsaturated fats) or three (at the end of the chain). This is simpler than nucleic acids and proteins. 

2. Fatty acids are used to make phospholipids, which make up most of the mass of a cell membrane. The fatty acid portion of a phospholipid is very hydrophobic (does not mix with water).