Question

multiple choice 1 point
question #19:
which of these is an example of the body trying to maintain homeostasis?
a) growing taller
b) aging through time
c) trembling when afraid
d) shivering on a cold day
multiple choice 1 point
question #20:
which of the following levels of organization best represents the sequence from smallest unit to largest?
a) cell, organism, organ, tissue
b) cell, tissue, organ, organ system
c) cell, organism, tissue, organ system
d) cell, tissue, organism, organ

Explanation:

For Question #19: Shivering on a cold day is a physiological response to maintain body - temperature homeostasis. The body generates heat through shivering to counteract the cold environment.
For Question #20: In the biological levels of organization, the cell is the basic unit of life. Groups of cells form tissues, different tissues combine to form organs, and multiple organs work together to form an organ - system.

Answer:

Question #19: D. Shivering on a cold day
Question #20: B. Cell, tissue, organ, organ system