Zambia
The other three are already well established.
I know them in Spanish
Esta formado por los 206 huesos repartidos por casi todas las partes del cuerpo. Que permiten el aparato locomotor Que pueden ser largos, cortos, planos Que forman el esqueleto y proteccion para los organos internos Que se unen en tejido oseo, y tejido cartilaginoso Que son la columna vertebral, craneo, y pelvis
Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".
Biologists do not fully understand DNA because there are constant changes and new discoveries developing.
The answer is
A
Behavior isolation is behaviors involved in mating which could also cause it to prevent mating
