Final answer:
The correct answer is Slide A - Parenchyma because it is an example of a simple tissue made up of only one cell type, important for the structure and function of plants.
Step-by-step explanation:
A plant biologist examining sections of plant tissue under the microscope in search of simple tissues would need to identify tissue that is composed of only one cell type. Among the options provide
Parenchyma and collenchyma are both examples of simple tissues because they are composed of a single type of cell, whereas xylem and phloem are complex tissues composed of multiple cell types. The correct answer is Slide A - Parenchyma, which shows a simple tissue with only one type of cell.
Simple squamous tissue of pericardium is an example of mesothelium.
Mesothelium is a single layer of cells that lines the body's internal cavities and covers its internal organs. Mesothelial cells are squamous cells with a central oval nucleus that are relatively flat. Peritoneum, pleura, and pericardium are the three major serous membranes in the human body.
Pericardium is a thin sac-like membrane that surrounds the heart. It is made up of a thin layer of mesothelial cells, which secretes a thin, watery fluid that allows the heart to move freely within the chest cavity without causing friction. Therefore, simple squamous tissue of pericardium is an example of mesothelium.