Lichens are
a. parasitic interactions between a fungus and an alga.
b. only found growing on living matter.
c. symbiotic associations between a fungus and an alga.
d. capable of causing some obscure diseases.
e. insensitive to changes in the environment.
C
You might also like to view...
Oxygen dissolved in water moves ____________________ it does in air
a. faster than b. slower than c. at the same rate as d. faster or slower, depending on the microbe content of the water, than
In the mechanism of action for auxin, after auxin binds with its receptor, which of the following
happens next? a. Proteins are targeted for destruction. b. Genes are activated. c. Ubiquitin attaches to repressor proteins. d. Transcription occurs. e. The cell wall loosens.
The ____ has the greatest productivity.
A. tundra B. desert C. boreal forest D. tropical rainforest
If a suspension of cells is frozen and fractured, the most likely path of the fracture plane will be
a. between the cell surface and the outside solution. b. between the membrane and the cytoplasm of the cells. c. through the middle of the cytoplasm. d. between the two leaflets of the cell membranes.