The stem cells will divide through mitosis to create diploid stem cells.
Answer:
Kangaroos from desert and semi-arid environments have adapted to drier conditions and have several features that help them deal with the lack of water. Kangaroos need very little water to survive. Kangaroos hop over large distances to find food and water. Hopping is a fast, energy efficient way to travel. Kangaroos need very little water to survive and are capable of going for months without drinking at all. The kangaroo usually rests in the shade during the day and comes out to eat in the late afternoon and night when its much cooler. It eats mostly grass. It needs very little water to survive.
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<u>Answer</u>:
Vestigial organs are those organs that were present in the past ancestors but absent in their present generations. Vestigial organs are not leftover of evolution because they are evolved to perform a different function.
<u>Explanation</u>:
For example, an appendix is considered as a vestigial organ but it helps in storing good bacteria and plays a vital role in the immune system. These vestigial organs are the product of changing the environment and adaptation to the changing environment. Due to natural selection some specific traits have been passed down to generations which helped the animals to survive in those conditions. The other examples of vestigial organs are wisdom teeth coccyx, tonsils, several genes in the chromosomes and our hair.
