True!
Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
The genes for growth and structure are very similar to ours. A mouse has about 92% of the same DNA because most mammals are the same genetically. A chimpanzee as you can probably guess shares up to 98% of the same DNA as us because they are the closest living species to us and we are about the same genetically
Do you mean as in a planet, because the answer would be earth.
Many introduced species damage the ecosystem, bring new diseases, prey/kill native species and compete with native plants and animals for food and shelter (which can result in a decrease of the species)
I think that's false because wouldn't its probability be 0