Answer:
To keep away other forces and was great for keeping invaders put
hope this helps u! have a good day!
Answer:
True
Explanation:
During the late 1950s and early 1960s, Werner Arber and several others extended the work of an earlier Nobel laureate, Salvador Luria, who observed that bacteriophages (viruses that infect bacteria) not only induce hereditary mutations in their bacterial hosts but at the same time undergo hereditary mutations themselves. Werner Arber’s research was concentrated on the action of protective enzymes present in the bacteria, which modify the DNA of the infecting virus e.g., the restriction enzyme, so-called for its ability to restrict the growth of the bacteriophage by cutting the molecule of its DNA to pieces.
Answer:
Al conjunto de acontecimientos ocurridos en el pasado se lo denomina Historia.
Explanation:
La historia es la disciplina que se encarga del análisis y la reconstrucción de hechos ocurridos en el pasado, sus causas y consecuencias, y los efectos que estos causaron y, en muchos casos, continúan causando. Así, mas allá de un simple repaso del pasado, la historia busca desentrañar las cuestiones subjetivas de dichos eventos y su implicancia en eventos posteriores.
Es entonces una ciencia social, en tanto estudia las formas en que estos eventos afectaron y afectan a las personas, modificando sus entornos sociales y naturales e incluso sus condiciones subjetivas internas (como religión, apoyo político, etc.).
Answer:
The literal meaning of perestroika is "reconstruction"
