They are accepted as true until they are proven false. Once a theory has been tested and it is wrong, then it is no longer true.
Answer:
Since boron only has two electron shells, it is about as capable of gaining electrons as it is of losing electrons, so it behaves as a metalloid. The other elements in this group have more electron shells, so it is much easier for them to lose their valence electrons and they behave like metals.
Angiosperms are a plant classification in which the plant beard seeds and flowers, has five flower petals, and has seeds enclosed by fruits.
Answer:
well you either have eukaryotic or prokaryotes : Eukaryotic being us humans (the one special thing we have in are cells to function is a Nucleus, which holds genetic material), and then Prokaryotic which just dont have a Nucleus
D all of these create a magnetic field. let me know if you want me to explain.