Which one of the following has irregular shape
A. cheek cell
B. guard cell
C. on bion cell
D. epidermal cell

A cheek cell

Explanation:

Human cheek cells are roughly circular or irregular in shape

a warm, wet climate will produce the highest rate of weathering. the warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering (figure below). this happens because plants and bacteria grow and multiply faster in warmer temperatures.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.