Levels Of Organization In The Multicellular Organism

Explanation
The nervous system is an example of an organ system. An organ system is a group of organs that work together to perform a specific function. In the case of the nervous system, it includes organs such as the brain, spinal cord, and nerves, which work together to coordinate and regulate the body's responses to stimuli. Therefore, the nervous system fits the definition of an organ system.

Explanation
The nervous system is a complex network of organs that work together to coordinate and control the body's functions. It is composed of the brain, spinal cord, and peripheral nerves. These organs work together to receive and interpret sensory information, send signals to muscles and glands, and regulate bodily functions. Therefore, the nervous system is an example of an organ system, as it is made up of multiple organs working together to perform a specific function.

Explanation
The digestive tract is an example of an organ system. An organ system is a group of organs that work together to perform a specific function in the body. The digestive tract includes organs such as the mouth, esophagus, stomach, small intestine, and large intestine, which all work together to break down food and absorb nutrients. Therefore, the digestive tract fits the definition of an organ system.

Explanation
Tendons and ligaments connect are tissues

Explanation
The sciatic nerve is a single structure composed of a collection of nerve cells, or neurons. Therefore, it represents the level of organization known as a cell.

Explanation
The level of organization for a cardiac (heart) cell is at the cellular level. The cardiac cell is the basic unit of structure and function in the heart. It is a specialized type of cell that is responsible for the contraction and pumping of blood. At this level, cells work together to perform specific functions and make up the tissues and organs of the body.

Explanation
The level of organization for a stomach cell is at the cellular level. This is because a cell is the basic structural and functional unit of living organisms. It is the smallest level of organization that can carry out all the necessary functions for life, such as metabolism, growth, and reproduction. Cells come together to form tissues, which then form organs, and organs work together to form organ systems. However, at the level of a stomach cell, it is considered as an individual unit rather than a part of a larger structure.

Explanation
The brain is considered an organ because it is a complex structure composed of different types of tissues that work together to perform specific functions. It is made up of neurons, glial cells, blood vessels, and connective tissue. The brain is responsible for controlling and coordinating various bodily functions, such as movement, sensation, thinking, and memory. As an organ, it is part of the central nervous system and works in conjunction with other organs and systems in the body to maintain homeostasis and overall functioning.

Explanation
There are 4 types of tissues: Epithelial, nervous, muscle and connective. Connective tissue include: bone, blood and lymph).

Explanation
A skin cell is the smallest unit of organization in the human body. It is a basic building block that makes up the skin tissue. Tissues are groups of cells that work together to perform a specific function. In this case, skin cells come together to form the skin tissue. Organs are made up of different types of tissues that work together to perform a specific function. An organ system is a group of organs that work together to carry out a particular task in the body. Since a skin cell is the smallest unit of organization, it is at the cell level.

Explanation
The bicep muscle is a specific part of the body that is composed of a group of similar cells that work together to perform a specific function. This grouping of cells is known as a tissue. Therefore, the correct level of organization for the bicep muscle is tissue.