PATHOLOGY

Detailed explanation-1: -Cells are the most basic unit of life at the smallest level of organization. Cells can be prokaryotic (without nucleus) or eukaroyotic (with nucleus). The four categories of tissues are connective, muscles, epithelial, and nervous tissues. Organs are made of different types of tissues and perform complex functions.

Detailed explanation-2: -All living things are made of cells, and the cell itself is the smallest fundamental unit of structure and function in living organisms.

Detailed explanation-3: -Answer: The highest level of organization for living things is the biosphere; it encompasses all other levels.

Detailed explanation-4: -The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular consisting only of a single cell while others, for instance, mammalians, are multicellular.

Detailed explanation-5: -A cell is the smallest unit of life. Cells are often called the “building blocks of life.” Cells are the basic structural, functional, and biological unit of all living organisms.