What is the difference between a conductor and an insulator?

Question 2 options:

A conductor can get heat transfer through convection and conduction and an insulator can only get heat transfer from radiation

A conductor lets heat pass through it easily, and an insulator does not allow heat to pass through it easily

A conductor can only get heat transfer through conduction, and an insulator can only get heat transfer through radiation

A conductor is unaffected by heat, and an insulator is extremely affected by heat

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

there is no

explanation:

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a