Green algae, ferns, and pine trees are classified in the kingdom Plantae. These organisms share certain characteristics. Which of the following is a characteristic used to classify these organisms as plants?

Question

A.
They produce flowers for pollination.

B.
They contain seeds for reproduction.

C.
They have an immune system.

D.
They engage in photosynthesis.

Answer 1

D. They engage in photosynthesis.

This characteristic is fundamental for classifying organisms in the kingdom Plantae, as all plants are capable of photosynthesis, allowing them to convert light energy into chemical energy.