The natural selection process applies majorly inside back species wether than between species.
B, I think, because by saying that the ice cube has a lower heat capacity means that it cannot stead heat enough to last longer then the water and pool.
Gametes are reproductive cells that unite during sexual reproduction to form a new cell called a zygote. Sexual reproduction needs zygotes to reproduce that is why gametes are needed. Asexual reproduction doesn’t need gametes because there is only one parent and there is no fusion of gametes.
A layer of ice on the surface keeps the water temperature warmer than the air temperature.
Answer: sexually reproducing organisms
Explanation: In most sexually reproducing organisms, each adult has two copies of each gene--one from each parent. These genes segregate from each other when gametes are formed. Alleles for different genes usually segregate independently of each other.