Answer:
1. contraseña
2. gen
3. patente
4. OVNI
5. extraterrestre.
Step-by-step explanation:
Word or series of letters or numbers that gives access to a computer: password
Particle formed by DNA that is in the nucleus of the cells and that determines the inheritance: gene
Document that recognizes someone as the author of an invention: patent
Unidentified flying object: UFO
Inhabitant of a planet that is not Earth: alien