Question

Classify the following terms into cells, tissues, and organs.
RBCs, WBCs, nerve cells, blood, muscle, blood vessels, brain, heart, hand

A. Cells- RBCs, WBCs, nerve cells
Tissues- blood, muscle
Organs- heart, hand, brain, blood vessel
B. Cells- blood, muscle
Tissues- RBCs, WBCs, nerve cells
Organs- heart, hand, brain, blood vessels
C. Cells- RBCs, WBCs, nerve cells
Tissues- heart, hand, brain, blood vessels
Organs- blood, muscle
D. Cells- RBCs, WBCs
Tissues- nerve cells, blood, muscle, blood vessels,
Organs- heart, hand, brain,

Answer 1

Hint:- A group of cells makes tissues, a group of tissues makes organs, and a group of organs makes organ systems. The function of an organ system depends on the similar activity of its organs. For instance, the respiratory system organs cooperate with oxygen that has been inhaled.

Complete step-by-step solution:-
Multicellular organisms are grouped into increasing components: Cells, tissues, muscles, organ systems, animals, from the least complex to the most complex. In biology, the cell is the essential membrane-bound unit comprising the fundamental molecules of which all living organisms are formed. They are also called "building blocks of life". Examples of cells in plants are parenchyma cells, collenchyma cells, etc, Whereas examples of the human cell are RBCs, WBCs, nerve cells, etc. Cells develop specialized functions as they mature and form tissue. Living tissue is composed of a group of cells with the same function and structure, all of which work together to do a specific job. Examples of tissues include muscle, nerve cells, blood, muscle, blood vessels, xylem (water-carrying tubes in a plant), phloem, etc. An organ is composed of a group of diverse tissues, all of which function together to do a specific job. Some examples of organs are as follows: heart, hand, lung, stomach, brain, leaf, root, etc.

Therefore the correct answer is option D.
Note:- Animal cells are eukaryotic, indicating they have a nucleus. But not all animal cells contain a nucleus. Red blood cells, for example, do not have a nucleus as the cells do not need to replicate either by meiosis or mitosis, therefore they do not require a nucleus. The absence of a nucleus helps them to carry more hemoglobin in the cell.