a grouping of tissues into a distinct structure, as a heart or kidney in animals or a leaf or stamen in plants, that performs a specialized task.
No, Organs are working parts of your body while tissue is like "clumps" of cells. Organs are composed of tissues which are themselves composed of cells that are working together. For example the heart is an organ and it is made of tissues composed of cardiac muscle cells.
Both. Organs are a group of cells devoted to a single and common purpose, which muscles are, and are composed of tissues.
The muscle lining most organs in the body - e.g. wall of the intestine
Most organs are composed of epithelial tissue, muscle tissue, and connective tissue
There are three types of muscles in the human body, smooth muscle, cardiac muscle, and skeletal muscle. The Muscle that the heart is made out of is of course, cardiac muscle. The smooth muscle consist of the lining of the esophagus, the stomach and other internal organs, the skeletal muscles consist of more familiar muscle groups such as the hamstrings, quadriceps, biceps, abdominals, etc.
Internal organs usually do not move. Unless you mean the contraction of the heart, which is composed of cardiomyocytes. If you have experienced some strange movement of other organs you should contact your doctor.
Walls of hollow visceral organs such as your intestines.
The tissue that makes up organs that are able to contract or shorten is known as muscle tissue. Muscle tissue is composed of muscle cells that contain protein filaments that slide past each other, causing the muscle to contract and generate force. There are three types of muscle tissue: skeletal, cardiac, and smooth.
An example of involuntary muscle in the human body is the smooth muscle found in the walls of internal organs such as the stomach and intestines. These muscles work automatically without conscious control.
A muscle may contract in an effort to protect a joint or internal organs. For example, if you contract your rectus abdominus muscle (your "abs"), it reduces the risk of impact injury to the organs inside.
The heart pumps blood through the body. The heart is an organ which is composed of the cardiac muscle.
The heart is composed of cardiac muscle.