Use the Following Information to Answer the Questions Below

question 21

Multiple Choice

Use the following information to answer the questions below.
A farm pond, usually dry during winter, has plenty of water and aquatic pond life during the summer. One summer, Sarah returns to the family farm from university. Observing the pond, she is fascinated by some six-legged organisms that can crawl about on submerged surfaces or, when disturbed, seemingly "jet" through the water. Watching further, she is able to conclude that the "mystery organisms" are ambush predators, and their prey includes everything from insects to small fish and tadpoles.
-Sarah noticed the presence of many empty exoskeletons attached to emergent vegetation. These exoskeletons looked exactly like those of the largest of the "mystery organism" she had seen in the pond. They also looked similar to the bodies of the dragonflies that patrolled the surface of the pond. If Sarah had learned a lot from her biology class, what should she have concluded about the mysterious pond organisms?

• A)They are larval dragonflies, destined to undergo incomplete metamorphosis.
• B)They are larval dragonflies, destined to undergo complete metamorphosis.
• C)They are adult dragonflies, so old that they can no longer fly, have fallen into the pond, but have not yet drowned.
• D)They are adult dragonflies that must, like many amphibian species, return to water in order to mate.

---

Definitions:

Bus Connectors

Components that are used to link individual bus bars or to connect devices to a bus system, facilitating communication or power transmission.

J1939 Data Bus

A communications network protocol based on CAN (Controller Area Network), designed for heavy-duty vehicles to exchange electronic information.

RP 1210 Compliant

A standard indicating compliance with the Recommended Practice 1210, which relates to software interfaces for communicating with heavy-duty vehicle electronics.

Communications Adapter

A communications adapter is a hardware device that facilitates the connection and data transmission between a computer or network and another type of communication system.