They are measures in degrees.
B
Anaerobic respiration produces ethanol in plants and some other organisms and lactic acid in animals
It can be found in tissues
The example that does not exhibit sexual selection is:
D. male elephant seals fighting over territory and potential female mates
The competition for territory is also one that helps the elephant seals survive. This is because a seal with a larger territory is likely to have access to a greater amount of resources, ensuring its survival.