Yas through elctrochemical signals basically ur right and true X
1. Simple squamous epithelium
The cells are flat and only one layer.
2. Simple cuboidal epithelium
The cells are cuboid and only one layer.
3. Simple columnar epithelium.
The cells are columnar and only one layer.
4. Stratified squamous epithelium
The cells are flat and containing several layers.
5. Stratified cuboidal epithelium
The cells are cuboid and containing several layers.
6. Stratified columnar layer
The cella are columnar and containing several layers.
C. A higher amount of addictive chemicals are needed to get the same high when fewer receptors are present...
The answer is A: a flagship species.
Hope this helps :)