Answer:
Cells are the fundamental unit of structure and function in all living things. Tissues are groups of similar cells working together, while organs are made up of multiple tissue types. Here are some examples of each:
Cells - Muscle cells, nerve cells, red blood cells
Tissues - Muscle tissue, epithelial tissue, nervous tissue
- Organs - Heart, brain, lungs, stomach, liver, skin, kidneys
Cells combine to form tissues, and multiple tissues combine to form organs. Organs then work together in organ systems, like the cardiovascular system, which is made up of the heart and blood vessels.
Some cells contain organelles, which are small structures that exist within cells. Examples of organelles include mitochondria and chloroplasts, which carry out essential functions: mitochondria produce energy to power the cell, while chloroplasts enable green plants to utilize the energy in sunlight to make sugars.
5 examples of cells:
Stem cells - Bone cells.
- Blood cells
- Muscle cells
- Sperm cells
Female egg cell
Fat cells
Nerve cells
