Which of the following will be the most similar?
A. Two cells in the same tissue
B. Two tissues in the same organ
C. Two organs in the same system
D. Two systems in the same organism

Statement that express things that are most similar is : A:Two cells in the same tissue.

Therefore, option A is correct.

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A. Two cells in the same tissue

Explanation: Cells are the functional units of life, this means that all living organisms are made up of cells. In multicellular organisms, cells are organized into complex structures such as tissues, organs and systems. A tissue is made up of similar cells which have the similar function. An organ is made up of several tissues while a system is made up of related organs. Example of a tissue is blood which is made up of similar cells such as red blood cells and white blood cells.

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

the cell theory states that all living things including animals, as well as plants, are made of cells.