During prophase I... Tetrad forms
Homologous chromosomes line up on the equatorial plate
Sister chromatids line up on the equatorial plate
DNA replication occurs

According to the big bang theory, after the "bang," the universe remained dark until about  300,000 yearsone billion yearsthree minutesthree billion years  later, when neutral atoms began to form.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .