Reading Passage: His discovery of penicillin came about accidentally in 1928 while researching on influenza. He observed that the mold in one of his culture
plates had destroyed the bacteria. This observation helped him develop penicillin
therapy. Penicillin is an antibiotic derived from the fungus Penicillium. It can also
be created by using artificial processes.
The 'his' and 'he' referred to in the reading is:
O Ben Carson
O Alexander Fleming
Sigmund Freud
Renee Lucas

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord

The bones of the extremities are parts of the a-appendicular skeleton b-axial skeleton c-long bone group d-medial skeleton

What percent of body heat can be lost through the head