Let him (look) at this insect carefully and (name) it.

Let him look at this insect carefully and name it. — Пусть он внимательно посмотрит на это насекомое и назовет его.

Who must look at this insect carefully?

Who must name it?

What must he look at carefully?

Must he look at this insect carefully and name it?

Must he or must we look at this insect carefully and name it?

Must he look at this insect or animal carefully and name it?

 Must he look at this or that insect carefully and name it?

 Must he look at this insect carefully and name or call it?