Question

Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated thatthere are between 10 million and 100 million different species. Despite this wide variety of organisms, it remains difficult to define what it means to say something is alive. Which of the following can be described as the smallest living unit?a. DNAb. Cellc. Organelled. Protein

Answer 1

B) Cell

Step-by-step explanation:

A cell is a structural entity that was formed during the primitive time which consists of the essential molecules and suitable conditions to perform the metabolic reaction needed to survive.

During the study of the plants and animal structure, Schleiden and Schwann found that they were composed of the almost same structure performing the same function.

They thus suggested that all the living organisms are composed of the cells and cell is the structural and functional unit of life.

Thus, Option-B is the correct answer.