Chemotherapy can: 1  Make a tumor smaller before surgery or radiation therapy. This is called neo-adjuvant chemotherapy. 2  Destroy cancer cells that may remain after surgery or radiation therapy. This is called adjuvant chemotherapy. 3  Help radiation therapy and biological therapy work better.
Guinness world records has listed Brazilian Wandering Spider as the most poisonous spider in the world. They wander the floor at night rather maintaining a web or residing in a lair. During the day time, they will hide under the fallen logs, termite mounds, under the rocks and even in a banana plant.
It is huge. It has one of the most painful bites in the spider world. It is the most deadly spider; forget the funnel web spider â this thing is dangerous. It has the highest human kill rate in the world. To make things even worse, a bite from this spider causes an erection that lasts for hours.