Schleiden proposed what would become known as the cell theory in 1838.
Louis Pasteur contributed to the cell theory by disproving spontaneous generation. He was the first scientist to prove that cells can only form from pre-existing cells.
Rudolf Virchows most widely known scientific contribution is that he backed up Schleidens previous discovery in 1838.
Answer:
As I think answer is may be D.
This is also a plant division, which is made of of three different 'families. These are woody plants, that have been grounded by gymnosperms. These are also known as gnetophytes. There are more than 70 specifies, across three 'families'- the Gnetum, Welwitschia and Ephedra. These only date back to the early Crustacean period (between 145-66 million years ago). The species are found globally, however, mostly in South America and Africa.
Hope this helps
Answer:
B) 10% of the energy goes to the next level of the energy
Explanation:
The 10% Rule means that when energy is passed in an ecosystem from one trophic level to the next, only *ten percent* of the energy will be passed on.