It depends on your purpose. For example, if you want to study a protein function and need to get large amount of it. Then you may transfer a plasmid which can express this protein into a bacterial like E.coli. This is a great method in scientific researches. But this also needs to be strictly controlled in case of mutation or something else to create an uncontrolled creature.
They are formed naturally, not organic, solid with a definite volume and shape, have a unique composition, and the atoms are arranged in a pattern called a crystal structure. They are naturally occurring solid, they are made up of a mixture of minerals, smaller rock fragments, organic matter, or glass.
Answer:
middle= This is the part through which sound travel inside the ear to the eardrum through the auditory canal . sound causes the eardrum nad it's tiny attached bones in the middle portion of the vibration and conducted to the nearby cochlea
inner part= the cochlea is the part of the inner ear . its main function is to transform sound into nerve impulses......
A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
