The larger the mass, the greater the gravitational pull. bigger planets have a greater gravitational pull so smaller planets get pulled in and start to orbit them.
Answer: The digestive system metabolizes (breaks down) food using enzymes. The small intestine helps absorb 1.water and 2.nutrients necessary for life!
Explanation:
Answer:
Energy
Explanation:
all of life relies on the sun. all living things need energy that the sun provides or will be effected by not having the sun.
the very basic properties of water
conducts heat
neutral pH
high surface tension
high specific heat
good solvent
how does this help a polar bear, some of it is a stretch but possible benefits
pH - good drinking water, good for marine ecosystem for food
high specific heat - can absorb lots of heat before the temperature rises, polar bears exist naturally in cold environments. (ice) - maybe can tie this in with the natural hibernation cycle
high surface tension - I'm assuming the polar bear walks on the ice at times to get fish
as a good solvent - its probably good that most things dissolve in water, otherwise we would have a lot of floating gunk on top of the water
outside of this, can't give you much more. it has been noted in Shishmaref Village that the ice caps melting is leading to a lack of water in higher mountain areas and polar bears are coming down from the mountain ice cap areas to find food and water