Answer:
The sessile and free-floating species like sea anemones and jellyfish exhibits a selective advantage due to the existence of the features like radial symmetry and a diffuse nerve net as it helps in the greater dissemination of sensory compositions on the entire body and also homogenously exposes the organism to the environment present around it for enhanced sensory discernment. It helps the organism in approaching their environment equivalently from all the sides.
What exactly are you trying to ask ??
Answer:
Not necessarily, higher fitness just means that the organism is more likely to survive to reproduce. However, a higher fitness equals a higher likelihood that the organism will survive to an advanced age.
Explanation:
It might sound confusing, but I hope it helps at least somewhat with your understanding!
Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
