Unikonta: Animal Form and Function Ch 40
List animal structures in order from smallest to largest?
Cell, tissue, organ, organ system
What is a benefit of multicellularity compared to organisms consisting of just one cell
Cells can be specialize
Which of the following organ systems in mammals is mismatched with its function?
Circulatory; coordination of body activities
An organism that generates body heat by means of its own metabolism is _________, and an organism that gains body heat from external sources is ________.
Endothermic; ectothermic
Interstitial fluid is __________.
Fluid that fills the spaces between cells of vertebrates
Which of the following characteristics is likely to be found in larger vs smaller animals?
Highly branched respiratory system
When a person's body temperature increases, sweating helps bring the temperature down. This is an example of __________.
Negative feedback
__________ feedback most directly maintains homeostasis because it __________.
Negative; tends to keep a system at a desirable "set point"
Most cells are microscopic because at this small size, __________.
Ratio of surface area to cell volume is maximized.
Which of the following statements correctly describes the differences between simple squamous cells and stratified squamous cells?
Simple squamous cells form a single layer, which is useful for gas exchange, and stratified squamous cells are multilayered and regenerate rapidly.
The main function(s) of connective tissues in the body is/are _________.
To hold tissues and organs in place and to join adjacent tissues together
A physiological state of decreased activity and metabolism that is an adaptation enabling animals to save energy while avoiding difficult and dangerous conditions is known as _________.
Torpor
