Answer: Characteristics: The fins are supported by rays, as the name indicates. In contrast to the cartilaginous fish they have a rigid skeleton. The swim bladder is also a unique feature of most ray-finned fish, enabling them to maintain buoyancy as they move up or down in the water.
Answer:
B it lives inside or on a host
Explanation:
that is the definition of parasite
The best reason to use a temperature probe is to<span> record continuous measurements over several minutes.
Hope it Help!</span>
