Question

You are studying a microscope slide that contains a cross-section from the

respiratory tract. You see layers of rectangular cells with cilia, rounded
cells, and long, flattened cells. The entire structure with each group of cells
working together would be classified as a(n)
O Organ
Cell
Organ system
Tissue

Answer 1

(d)

Step-by-step explanation:

A group of cells working together is called a tissue.