Pili connects a bacterium to another of its species, or to another bacterium of a different species. That builds a bridge between the interior cells.This enables the transfer of plasmids between the bacteria
Our planet has 4.5 billion years, it has been busy for few eons . Birth of planet earth grew up from a dusk and rocks surrounding young sun. The origin of life . Life harness the power of sunlight . The begining of plate tectonics.The great oxidation event.
Explanation:
Which weather map symbol represents air masses that normally form south of the United States over the Caribbean Sea?
Answer:
A. Casts
Explanation:
A mold fossil forms when the remains of an organism leave a mark in sediment that hardens before the organism rots or is washed away. Sediment can then fill in that mold, forming what looks like a sand or clay version of the organism; this is called a cast fossil.