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.
Answer and Explanation:
The lymph node are the sites for the formation of lymphocytes and monocytes. These are concerned with antibody formation and phagocytosis of foreign materials respectively. In the lymph nodes, bacteria and other harmful materials are removed from lymph.
Answer:
Pollen is produced during the pollen formation cycle of a flower.
Explanation:
Answer:
Option A
Explanation:
Please see the attachment
Answer:
C. Both of the above.........
