Meiosis is the process of reduction of diploid cells to haploid cells and it involves two process meiosis 1 and meiosis 2.
Meiosis 1 involving the crossing over of the genetic material between the pair of chromosomes whereas meiosis 2 involves the separation of the chromosomes into sister chromatids.
Due to the gravitational pull
It is chloroplasts because chloroplasts are the organelles responsible for photosynthesis in plants.
Hello! The largest mass extinction in Earth's history occurred about 250 million years ago, right before the dinosaurs appeared. Devonian Period ended about 355 million years ago, which was before the mass extinction occurred. Therefore, C is eliminated. The Cambrian Period came before Devonian Period, ending around 485 million years ago, which also eliminates A. Ordovician Period ended about 445 million years ago, which also before the mass extinction. B is gone, which leaves us to the last available answer choice being D. The Permian Period ended around 250 million years ago, which was the time of the mass extinction. The largest mass extinction even occurred at the end of the Permian period. The answer is D: Permian.
