(A physical examination of the cats siblings) because you cant check its kittens, because there could be a dominant phenotype that caused them to have short tails. A physical examination of the cat wouldn't help either.
Oxygen, nourishment (vitamins, lipids, fats, etc.)
If crossing over does not happen the product is parental gametes. Meaning there is less genetic variation.
The answer is; Dead Zone
These areas have anoxic condition means they have very little to zero dissolved oxygen hence cannot support marine/aquatic life. This is as a result of eutrophication caused by algae blooms. This phenomenon is brought about by pollution of these water reservoirs. These algae bloom take up all the oxygen in the water during their mass decomposgion hence leave no dissolved oxygen for the rest of the marine life.
Assuming this is an EMT Question
Never disclose any information over the radio that can be used to identify the patient including his name. Use general terminology.