Answer:
Option "C" is correct.
Explanation:
The reason is that, form the two experiments it was concluded that both O1 and O2 were recessive, so all these remaining options which says that any or both of them are dominant are incorrect.
I believe the answer is anaerobic respiration. Sorry if that’s wrong though! :)
Spawning.......................................................
Answer: C
Explanation: The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.
Answer:
The mechanism is natural selection.
Explanation:
Natural selection is the mechanism that these air-breathing fishes have gone through to survive. This mechanism allows species to survive and reproduce due to differences in the phenotypes of every individual in the specie, throughout the time the heritable traits that every individual inherits changes according to the environment and the characteristics of its ancestors.