Distinguish between sister chromatids and non-sister chromatids.

Sister chromatids:

The chromatids of replicated chromosome that are joined through a centromere is known as sister chromatids. These chromatids are identical to each other. They contains the same allele at similar loci. They are formed at the synthesis phase of cell cycle.

Non-sister chromatids:

The chromatids of the different homologous chromosomes are known as non-sister chromatids. These chromatids are non- identical to each other. They contains the different allele at similar loci. They are formed at the prophase I of phase of meiosis.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh