Answer:
Memory cells are specalised types Nerve Cells .
D. Cross braces this is the right answer
Answer:
Following are the salient adaptations of villi that make them good absorbers:
Villi are single cell thick. ...
Villi have rich network of blood capillaries . ...
Most important is: Apical membranes of Villi further form many finger-like projections called microvilli or brush borders. ...
Villi have permeable membranes .
It is useful and the cylinder graduated for us
Ohhh I know this! Number 1 is saturated fats, Number 2 is unsaturated