1. The cell wall has lignin (hard substance): to prevent the xylem vessel from collapsing and withstand high pressure.
2. The absence of protoplasm (nucleus + cytoplasm) and cross wall: to allow water to move through the lumen easily.

Hope it helped!

3 0

3 years ago

These finches have a common ancestor and live close to each other on different islands. Why are their beaks different? *

kari74 [83]

Answer:They live in different environments and to survive many finches have different beaks.

Explanation:

6 0

3 years ago

Cells in multicellular organisms have many different sizes and shapes. These differences in cells is called cell specialization.

Art [367]

The answer would be A :)

7 0

3 years ago

Read 2 more answers