The correct answer is C, phosphate and nitrogen pollution I just had this test and I got 100%.
I think it’s c
Primarily, lactic acid fermentation differs from ethyl alcohol fermentation in that lactic acid, rather than ethanol, is the resulting by-product. When exposed to oxygen, lactic acid molecules break down into carbon dioxide and water.
The structures of chelicerates that are analogous to the antennae of chilopoda and other mandibulates are PEDIPALPS.
Chelicerates are devoid of antenna whereas antenna are found in chilopoda and other mandibulates. The pedipalps found in the chelicerates functions as antenna. Pedipalps are used for catching prey and as sensors.
The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.