Name: ________________________________ E.N. ___
Use your textbook and class notes to answer these questions.
a. atom cell tissue alive organ
b. brain stomach heart liver epithelium
c. epithelium heart muscle tissue nervous tissue connective tissue
d. human digestive system horse pine tree amoeba
7- 20 Identify the organ systems to which the following organs or functions belong. Insert the correct term in the answer blanks.
Key choices: cardiovascular integumentary nervous skeletal digestive lymphatic/immune reproductive urinary endocrine muscular respiratory
Using the same key choices for # 7-16 choose the organ system to which each of the following sets of organs belongs by writing the system in the blank
#21-23 Match the terms to the descriptions:
terms: digestion excretion growth maintenance of boundaries metabolism movement responsiveness reproduction
24. The above terms describe: a. necessary life functions b. things needed to survive
#25-27 Match the terms to the descriptions:
terms: appropriate body temperature nutrients water atmospheric pressure oxygen
28. The above terms describe: a. necessary life functions b. things needed to survive
Complete each statement by inserting word(s) in the blanks
There are three essential components of all homeostatic control mechanisms: control center, receptor, and effector. The __29___ senses changes in the environment and responds by sending information (input) to the __30___ along the _31_____ pathway. The __32____analyzes the input, determines the appropriate response, and activates the _33____ by sending information along the __34___ pathway. When the response causes the initial stimulus to decline, the homeostatic mechanism is referred to as a _35______ feedback mechanism. When the response enhances the initial stimulus, the mechanism is called a __36___ feedback mechanism. _37___ feedback mechanisms are much more common in the body.
38. Give an example of a negative feedback mechanism
39. Give an example of a positive feedback mechanism