Because your body will be expending more calories just so that it can maintain a constant body temperature, high calorie foods are best.
Any food that is hot is generally the best food in the Antarctic region.
their body type is suitable for such cold weather
Antarctic hair grass is not part of any Antarctic food chain.
Because the orca has no predators in Antarctic waters. The Antarctic cod provide excellent food for them, as do penguins, other birds and seals.
in the sea
Ozone hole will affect Antarctic food chain. It will kill all the planktons.
phitoplankton
No food is grown on Antarctica. There are, however, fish that are harvested from waters north of 60 degrees S, that are sometimes called 'Antarctic fish'.
When these penguins feed, their food source is in the Southern Ocean.
cabohydrates suitable as food for man
Doritos
they die