Hey there! Here is your answer: Horseshoe crab is considered living fossils because they have existed unchanged for about 445 million years. They are usually not crab; they are not closely related to lobsters or crab. ... Horseshoe crab looks is almost the same with their ancient relatives despite the fact that they have been around for so long. I hope this helped! Your fellow Brainly user, GalaxyGamingKitty. (THE FOLLOWING INFORMATION HAS BEEN USED FROM GOOGLE)
C the appearance of new phenotypes in the offspring
If your period of development in which your reproductive system matures and your sex hormones increases its called puberty
Turning off the switch breaks the electrical current to the light - no supply of energy, the light goes off.
