What are multicellular organisms?

What are specialised animal cells?

How many cells are in the human body?

How many different types of cells are in the human body?

What are the three types of muscle cells?

What are skeletal muscles?

What is smooth muscle?

What is cardiac muscle?

Why do muscles, especially cardiac muscles, have so many mitochondria?

What are neurons?

What are erythrocytes?

What are leucocytes?

What are brown fat cells?

What are white fat cells?

Do plants have specialised cells? Name five of them.