I think the 4 major types of vectors are plasmids, viral vectors, cosmids, and artificial chromosomes. The most commonly used vectors are plasmids.
Hope this helps! ;0
Answer:
this represents response to the environment
Answer:
23a: The priest and the levite
23b: (from wikipedia) "<em>In Jewish culture, </em><em>contact with a dead body </em><em>was understood to be </em><em>defiling.</em><em> Priests were particularly enjoined to </em><em>avoid uncleanness.</em><em> The priest and Levite may therefore have </em><em>assumed</em><em> that the fallen </em><em>traveler was dead </em><em>and avoided him to </em><em>keep themselves ritually clean."</em>
23c: He took care of himand helped the wounded traveler to recover.
GIVE BRAINLIEST :)