What polar bears do to keep their temperature at a steady pace in cold temperatures is that they eat enough food to have a steady source and supply/constant amount of fat. Fat acts as an insulating agent and bears have plenty of it. This also explain why a lot of other animals who live in very cold climates have a lot of fat on their bodies.
Nitrification or nitrogen fixation
Answer:
At the end of meiosis 1, double number of chromosomes are present in each cell.
Explanation:
Meiosis is a type of cell division in which a single parent cell is divided into four daughter cells. In meiosis 1, a single cell is divided into two daughter cells having double number of chromosomes. After that meiosis 2 occurs in which these two daughter cells again divided into four daughter cells having half number of chromosome. This type of cell division only occurs in the sex cells.
My answer would be 2:2 for the first one and if they were all girls, assuming none are bald, the ratio would be 4:0. sorry if i’m wrong that’s just how i solved the problem:)