NUTRITION
THE HUMAN BODY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They get energy from many food sources.
|
|
|
They get energy from a single food source
|
|
|
They need only one cell to meet their basic needs.
|
|
|
They need many cells working together to meet their basic needs.
|
Detailed explanation-1: -Single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions. Q. Which best explains why both cats and humans are multicellular organisms? They get energy from many food sources.
Detailed explanation-2: -Cells of all multicellular organisms need to communicate with other cells in order to coordinate development and promote their environmental adaptation and function.
Detailed explanation-3: -Answer and Explanation: Multicellular organisms need efficient transportation systems because simple diffusion would be too slow to transport nutrients and remove waste. In single celled organisms, simple diffusion carries metabolic waste out of the cell and allows for the transport of nutrients into the cell.
Detailed explanation-4: -Multicellular organisms depend on other organisms for survival, while single-celled organisms do not. Which best explains why a human needs many cells to survive? Each cell works with other cells to perform all necessary life functions.