In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leaf's nonliving, waxy covering while inhibiting the growth of other microbes that are plant pathogens. If this bacterium gains access to the inside of a leaf, however, it causes a fatal disease in the plant. Once the plant dies, the bacterium and its offspring decompose the plant. What is the correct sequence of ecological roles played by the bacterium in the situation described here? Use only those that apply.
1. nutrient recycler
2. mutualist
3. commensal
4. parasite
5. primary producer
A) 1, 3, 4
B) 2, 3, 4
C) 2, 4, 1
D) 1, 2, 5
E) 1, 2, 3
Leafcutter ants carrying leaf fragments back to the nest where they will be processed to create a su
Leaf Structure
Giardiasis. Colorized electron micrograph of a Giardia protozoan adhering to the surface of an epith
IgM only, then IgD and IgM on the surface of a B cell.
Gaussian surface in the presence of a dielectric
Observed global land and ocean surface temperature anomalies since 1850