1. In your own words, define ectotherm:
Ectotherms are animals considered cold blooded that have their body temperatures controlled through external sources such as sunlight.2. In your own words, define poikilotherm:
Poikilotherms are organisms or animals whose internal body temperatures do fluctuate considerably caused by the varying environmental.3. Describe an insect’s tracheal system, including its function and its structure. How does a tracheal system work for an insect that lives under water?
The tracheal system consists of tubes that penetrate through the insect’s body. The tracheal have pore referred to as the spiracles. The spiracles are found Continue reading...