In reprodction, individuals are produced by the fusion of gametes

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 a group of organisms that are closely related and share similar characteristics

What is the most abundant vertebrate on earth?