There are a couple reasons the ice is important to polar bears, but given the choices you have the correct one would be:
A. The polar bears can’t out swim the seals, so they sit quietly on an ice platform and attack the seals when they come up for air.
Answer:
Temperature is the measure of the average energy of motion of all the particles present in a substance because particles of a substance moves due to the presence of kinetic energy.
Explanation:
Kinetic energy is a type of energy that is present in an object due to its motion. When temperature of a substance is increased, the particles absorb heat energy from surrounding environment and starts motion. This motion of particles due to the absorption of heat energy is called kinetic energy. So that's why temperature is considered as a tool to measure average energy of a motion.
The set of all alleles at all loci is the full gene pool<span> for the species. Over time, the size of a </span>gene pool<span> changes. The </span>gene pool<span> increases when a </span>mutation<span> changes a </span>gene<span>and the </span>mutation<span> survives </span>
Explanation:
I wrote out an explanation but it said "Rude! We don't use such words here. Please change it". I honestly don't know what word i couldn't use but I just could not post it. I tried changing any words that may have caused it but it did not fix the issue. So here are the answers only.