A. Organisms with less desirable traits do not reproduce
is the answer
The answer is a. I'm pretty sure
The equinoxes signify a change in the seasons. The equinoxes are the main circumstances when the sun based eliminator is opposite to the equator. Therefore, the northern and southern halves of the globe are similarly enlightened. The equinoxes are the main circumstances when the subsolar point is on the equator, implying that the Sun is precisely overhead at a point on the central line.
When the nematocysts are discharged into prey, such as a fish, they paralyze it. Contracting tentacles bring the fish up to the mouth, located in the center of the medusa, where it is ingested (taken in).