In animals the normal development of an embryo is dependant on

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

What is the ecological role of food chains and food webs

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what