Match the items. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.

a. Secretes hormones
b. Transports and filters lymph fluid
c. Filters and removes waste products from blood
d. Responsible for gas exchange between blood and air
e. Responsible for consciousness and memory
f. Regulates body temperature, houses cutaneous receptors and synthesizes vitamin D

1. Integumentary System
2. Nervous
3. Endocrine
4. Lymphatic
5. Urinary
6. Respiratory