Does discharge mean that your period is coming and if it is glow many days till your period? ?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates