Why did Tesla want to have patents for his ideas? O To share with other inventors
To prove that he was first to have the ideas
O
To tell others that he always had the best
ideas
O To show that he was a good businessman
as well as an inventor

To show that he was a good businessman and as well as an inventor

The correct answer is an increased number of rod cells.

In eyes of the humans, and many other animals there are two types of receptors, the rods, and the cones. The cones have an important role in color vision and they possess different types of pigment which enable color vision.
On the other hand, the rods are more sensitive to light, and they are responsible for black and white vision.
Therefore, an increase in the number of rods can enable the animal to see betther in the dark.