-There are advantages to being multicellular rather than unicellular. These include; allowing the organism to be larger, allowing
cell differentiation (having different types of cells with different functions)
, and also allowing the organisms to be more complex.
-Complex organisms often have specialized cells that carry out different functions. Having specialized cells and systems allows the process such as transport of nutrients and waste to and from all the cells of the body to occur.
<span>Specialized cells refers to those cells that have develop certain characteristics which enable them to perform specific functions. Specialized cells are very important to muticellular organisms. In these organism, cell differentiate and specialize to form tissues, which come together to form different organs such as brain, heart, lungs, kidneys, etc. Examples of specialized cells in the body are neurons, muscle cells, red blood cells, sperm cells and leukocyte cells. The different organs formed by specialized cells perform different functions in the body.</span>
B. có nhiều hệ sinh thái khác nhau trên trái đất. mỗi hệ sinh thái có một đặc tính riêng và chúng có thể kết nối, tác động qua lại với các hệ sinh thái khác
