The cell theory states which of the following?

Options

A. Cells are produced from pre-existing cells.
B. Cells are the basic unit of structure and function in organisms.
C. Continuity is not maintained through the genetic material
D. All living things are composed of cells.

Explanation

To answer the question regarding the cell theory, let's break down the key components of the cell theory step by step.

### Step-by-Step Solution:

1. **Understanding Cell Theory**: The cell theory is a fundamental concept in biology that describes the properties of cells. It consists of three main principles.

2. **First Principle**: The first principle states that all living organisms are made up of one or more cells. This means that cells are the basic building blocks of life.

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