Feedback Mechanisms

Question 1

Negative feedback loop

Answer 1

when the body receives a stimulus and the response decreases/counteracts the stimulus

ex) temperature regulation

Question 2

Positive feedback loop

Answer 2

when the body receives a stimulus and increases the stimulus

ex) childbirth contractions

Question 3

Stimulus

Answer 3

a change in the environment that causes a reaction

Question 4

Signal

Answer 4

a message that is sent

Question 5

Response

Answer 5

something you do after you receive a signal, a reaction to the stimulus

Question 6

Levels of organization starting from cells?

Answer 6

cells, tissues, organs, organ systems, organism

Question 7

cells (in terms of levels of organization)

Answer 7

the smallest and basic unit of life

Question 8

tissues

Answer 8

a group of cells that have the same function

Question 9

organs

Answer 9

a group of different types of tissues that work together

Question 10

organ system

Answer 10

a group of different types of organs that perform a major function in the body

Question 11

organism

Answer 11

any living thing