Biotic means living (can reproduce, has dna, can go through homeostasis) abootic mean non living (like a desk, table, chair, etc.)
Chromosomes contain DNA molecules highly packaged and wound around histone proteins. Each chromosome has two chromatids joined together at a point called centromere. Crossover is a process that take place during meiosis 1 ( first phase of meiosis), it enhances the exchange of genetic material. During cross over the non-sister chromatids of chromosomes fuse at chiasma where exchange of genetic material takes place.Therefore, it will be correct to say that crossover creates sister chromatids that are different, because non-homologous sister chromosomes have swapped genetic material with one another.
A. True
The energy for the water cycle does come from the sun.
I think it's c,the lowest