It is a peptide that maintains wakefulness.

It comes from a Greek word which means “glue”

These are very tiny cells that remove waste materials as well as fungi, viruses, and other microorganisms.

It is shaped like a tree because of the branching out fibers that gets narrower near their ends.

What is the brain’s main source of fuel?

The eyes allow us to see, perceive, and interpret the world around us through the detection of __________

It is the transparent gel that gives the eye its shape.

It makes the fluid inside the eye. It also enables the lens of the eye to focus on objects at various distances.

It is a clear part that receives the light that enters the eye. It then bounces off this light to the back of the eye

It is the colored part in front of the eye. It helps screen and control the amount of light that enters the eye.

It is the transparent film-like part that enables the eye to focus on images so they do not look blurred.

It is the white part of the eye.

It is located in the center of the cell, surrounded by a membrane which keeps all the chromosomes inside.

A polymer is a compound formed by many simple units connected to each other.

It refers to the two alleles an organism has inherited for a particular gene.

It refers to the result of the expression of one or more genes.

It is the passing of traits from parent organisms to their offspring.

It has the twisted Ladder shape

Which of the following has Purine base?