Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
HEY DEAR..
1》 All stars die, and eventually — in about 5 billion years — our sun will, too. Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant and then tears its body to pieces to condense into a white dwarf.
so options B is the correct answer.
2》protostar is the answer...
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Answer:
The person would be more prone to illness
Explanation:
White blood cells are also known as Leukocytes. (which is where the name Leukemia came from) They help protect the body from illnesses and foreign invaders by engulfing and destroying them. If the body cannot create enough white blood cells, then there are less cells to fight off infection.