Royal jelly, a thick, milky substance secreted by young nurse honeybees to feed a bee colonyâs larvae, most notably the queen larvae, is a rich source of nutrients, as well as acetycholine, a neurotransmitter that plays a critical role in cognitive function.
The origin of the eukaryotic cell is a milestone in the evolution of life, since eukaryotes include all complex cells and almost all multicellular organisms. The timing of this series of events is hard to determine; Knoll (2006) suggests they developed approximately 1.6â2.1 billion years ago.
Eukaryotic cells are living things that contain a nucleus that make up of three domains or basic division of life. Most eukaryotic cells are larger than the cell of archaea and bacteria.Eukaryotic cells appear most recently like some things that are alive such as plant,animals,humans,and water.Of the three domains of life probably between 1-5 billion or 2 billion years ago.ost eukaryotic cells are larger than the cell of archaea and bacteria. Eukaryotic cells appear most recently like some things that are alive such as plant,animals,humans,and water. Of the three domains of life probably between 1-5 billion or 2 billion years ago.