Please discribe the process of blood circulation in fish?

a) explain the property that prevents normal cells from becoming cancerous.

b) all normal cells have inherent characteristic of becoming cancerous. Explain

what is the difference between insulin and glucagon

 what is genome?

How does smoking tobacco in human lead to oxygen deficiency in their body?

 what is thurioside?

I've selected my biology investigatory project as "human diseases" can i get some ideas how to start with it or what type of content should it carry ?

investigatory project on alcoholism and smoking

Provide one word or one sentence information about plasmid with respect to its (i)Chemical nature (ii)Is duplications

WHAT IS THE DIFFERENCE BETWEEN BENIGN AND MALIGNANT TUMORS

difference between HIV and AIDS

 in ncert book, in the diagram of life cycle of Plasmodium, it's meantioned that the fertilisation and development takes place in the mosquito's STOMACH, n nt in the intestine.... which one is correct?

 what is the differense between cancer and tumor?