<span>a. he was born in 1707 and died in 1778.</span>
The modern era of flight lifted off in 1783 when two brothers demonstrated their invention, the hot air balloon, before a crowd of dignitaries in Annonay, France.
Structures that are common to all cell types:
* Plasma membrane
* Cytoplasm
* DNA
* Ribosomes
Functions:
* Plasma membrane provides protection to cell
* Cytoplasm holds components of cell and protects from damage
* DNA stores information for making proteins
* Ribosomes decode and form peptide bonds
Oil is more dense than the water