Regeneration in planarians depends on the presence of stem cells called neoblasts. These cells are distributed throughout the body and, when part of the worm has been amputated, they are activated to reform the tissues that have been removed.
Answer:
12:90,13:true,14:youth bulge
Compared to benign tumors, malignant tumors are different because the cells in malignant tumors are cancerous.
Answer:
The answer to your question is B.
You have not given the concept map. But I think it might be this one. So, according to this concept map, the answer should be B. H2O and CO2