First day at my job.

After getting my masters degree from kurukshetra university ,i joined the Q&C dept. of a well known pharmasecutical company . On the first day of my job i was highly excited but nervous too. I reached at company on 10 A.M. Q&C head gave me a warm welcome and introduced me to all members of dept. After that my head discussed with me and told me about the type of work which were carried on in Q&C. Then head assisgned my work and asked me to meet my work partner. Ms. Roji was my work partner. She gave me congratulations for joining & then we discussed about the our work. She was expert in her work and i tried to learn from her.
Whole day i was busy to with my assigned work but i was happpy because of good partner and a nice working ambience.

TOEFL listening lectures: An organism that generates internal heat is called what?