Question

3 what is the difference in a multicellular organism and a single cellular organism? 4. we inhale __________ and exhale __________. 5. give two examples of a single celled organism. 6. the skull protects which major organ? 7. a specialized cell that carries information in the form of electrical signals is called what?

Explanation:

1. Multicellular organisms are made of many cells with cell - specialization and cooperation, while single - cellular organisms consist of one cell that performs all life functions.
2. We inhale oxygen and exhale carbon dioxide as part of the process of respiration.
3. Amoeba and paramecium are common single - celled organisms.
4. The skull protects the brain, which is the control center of the body.
5. A neuron is a specialized cell that carries electrical signals for communication in the nervous system.

Answer:

1. Multicellular organisms have multiple cells with division of labor; single - cellular organisms have one cell performing all functions.
2. Oxygen; Carbon dioxide
3. Amoeba; Paramecium
4. Brain
5. Neuron