Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels. however, the cells in the cornea and lens (in the anterior segment) are avascular. which is the best explanation for how these cells are maintained?

The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.

Explanation:

*- The capillaries of the limbus nourish the peripheral part of the cornea.

*- Tears supply of glucose in the tear film

*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer

straight or amphibians are homeothermic to thermal

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave