Question

critical thinking

1. construct a counter - argument a classmate argues that schwann and schleiden are responsible for the cell theory. how do you respond? cite facts and use logical reasoning to support your argument.
2. sep ask questions you observe a tiny structure under a microscope. what question would you ask, and then investigate, to determine whether the structure was part of a living thing?
3. integrate information review the micrographs of cells shown in figure 8 - 3. what information about cells do these micrographs show? what information might the micrographs suggest, which might not be accurate?

Explanation:

4.

While Schwann and Schleiden made significant contributions to cell - theory, it was a collective effort. Rudolf Virchow later added the idea that all cells come from pre - existing cells. Also, earlier scientists like Robert Hooke and Antonie van Leeuwenhoek made important observations related to cells that laid the groundwork.

One could ask if the structure shows signs of metabolism, such as taking in nutrients or expelling waste. Another question could be if it can reproduce or respond to stimuli. Investigation could involve observing if it changes over time, takes up dyes (indicating active processes), or shows movement.

Micrographs can show cell shape, size, presence of organelles, and cell - to - cell arrangements. However, they might suggest fixed states that don't represent the dynamic nature of cells in real life. Also, staining and preparation methods can distort the true appearance of cells.

Answer:

Schwann and Schleiden were important contributors, but cell theory is a result of the work of multiple scientists over time. Their ideas were built upon earlier discoveries and further refined by later researchers like Virchow.

5.