avascularity is the option term which best explain why nutrient for epithelial cell are obtained by diffusion from the underling connective tissue. Epithelial membrane consist of continuous sheet of cell. one or more layer thick and are attached to the underlying connective tissue by a basement membrane. Nutrient and oxygen reach epithelial membrane by diffusion from blood vessel which are located in the connective tissue beneath the basemen membrane
They did it to get more detailed pictures of space
The best description of chromosomes by the end of metaphase 2 of meiosis is that they are lined up in the middle of the cell. You can help remember this by thinking of the "M" in metaphase as middle. this is because in this phase the chromosomes are lined up in the middle of the cell.
