Solution

Earthworms have a simple brain that connects with nerves from their skin and muscles. The nerves detect light, vibrations and even some tastes. They do not possess eyes like humans and other complex animals; instead, they have light receptors that detect when it is light or dark. The muscles make movements in response to touch and taste.
Septal nephridia and pharyngeal nephridia in earthworms are both enteronephric (discharging excreta into the intestine).
Typhlosole in earthworms, a dorsal flap of the intestine that runs along most of its length, increases intestine surface area for more efficient absorption of digested nutrients.
Gizzard, in many birds, is the hind part of the stomach, specially modified for grinding food.