Which evidence did carl linnaeus use to classify organisms?

a. physical characteristics
b. evolutionary history
c. physical characteristics and evolutionary history
d. physical characteristics, genetics, and evolutionary history

The right option is; A. physical characteristics

Physical characteristics is the evidence that Carl Linnaeus used to classify organisms.

Carl Linnaeus is a Swedish classical botanist that named and classified organisms based on their physical characteristics such as shape, color, size etc in 1700. His classification system was later developed into the modern classification system. Carl Linnaeus classified living things into kingdoms (animals, plants, and minerals). Each of these kingdoms were divided into classes, classes were divided into orders, orders were further divided into genera and then species.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.