Question

1. What is the word for a type of communication that goes from cell to cell?

2. What is the word that means “within the cell,” such as referring to signals moving from one place to another within the cell?

3. Explain why multicellularity of an organism requires cell-to-cell communication.

Answer 1

Intercellular signaling refers to communication between cells, while intracellular signaling involves communication within a single cell. Both forms of signaling are essential for the functioning of multicellular organisms as they allow cells to coordinate actions and respond to environmental changes.

Step-by-step explanation:

The word for communication between cells is called intercellular signaling. This type of communication ensures that cells within an organism can coordinate their actions. Similarly, the term for communication within a single cell is intracellular signaling. It concerns the signals that move from one part of the cell to another, within the cell's own boundaries.

Multicellular organisms rely on complex coordination between their cells, which is achieved through intercellular signaling. This form of communication is essential as it allows cells to send and receive messages that coordinate biological processes. For example, they can direct the actions of different organs, tissues, and enable responses to changing environmental conditions. Without efficient cell-to-cell communication, multicellular organisms would not be able to function as a cohesive unit, hence it is vital for their survival.