Fungi cell walls are made of cellulose, like plants made of polysaccharides and chitin permeable semipermeable

The correct answer for the blank is-

made of polysaccharides and chitin.

Chitin is a fibrous material that possesses polysaccharides and forms the  major constituent in the fungal cell wall. It is a polymer of  N-acetylglucosamine, which is derived from glucose.

Due to the presence of fibrous cell walls in fungi, they can easily penetrate animals and plant body, so as to extract nutrients out of them.

Thus, polysaccharides and chitin is the right answer.

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:

condenser is used to focus in the light microscope.