The amount of light entering the eye is controlled by a.) cornea b.) lens c.) pupil d.) retina !

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

How can an organ, such as the lungs, work for multiple body systems?

What is a dendrite and what does it do?