HYDROGEN
Carbon is never a limiting nutrient because it is abundantly available in the atmosphere as carbon dioxide and is integral to all organic compounds. Plants and other photosynthetic organisms utilize atmospheric carbon through photosynthesis, ensuring its continuous availability in ecosystems. Unlike other nutrients, such as nitrogen or phosphorus, which can become depleted, carbon cycles through the environment and remains accessible.
By definition, it will always be an element, never a compound.
I never knew there was a 2001 element!!!
Neurons in the brain and spinal cord are cells in the body that are never replaced.
Centrioles
Cells have never had cameras.
Aluminium is an element, and because of its reactivity is never found as a native element.
Fluorine is never found in nature as a pure native element due to its high reactivity. It typically forms compounds with other elements such as in minerals like fluorite.
Cells would keep dividing and never stay inter phase.
They never can! elements can never ever be broken down!
The cell wall is only found in plant cells. It is not found in animal cells.
Element 115 is responsible for the creation of zombies. It is a very mysterious element whose effects are said to reainimate dead cells. The element has never been found on earth (the the Periodic Table of Elements), and the story goes that it was harvested from a meteorite, and utilised by scientists from Group 935 during WWII. Have a look at the Call of Duty Wiki for more info.