A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and modified segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature
A) eight legs.
B) two pairs of antennae.
C) a sessile lifestyle.
D) an open circulatory system.
E) parapodia.

Question

Quizplus · Accepted Answer

The presence of an exoskeleton, a system of tubes for gas exchange (tracheal system), and modified segmentation are characteristics associated with arthropods. Among arthropods, an open circulatory system is a common feature, where the blood is not entirely contained within blood vessels but is partially contained in a body cavity called the hemocoel. This allows for the distribution of nutrients and gases to the body tissues. The other options are specific to certain groups within or outside of arthropods and do not directly correlate with the given larval characteristics.

A Terrestrial Animal Species Is Discovered with the Following Larval