1) What is a column called in the periodic table and what do the elements in each column have in common?
A)
period; the same atomic mass
B)
group; the same number of electrons
C) period; the same number of atomic orbitals
D) group; the same number of valence electrons

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

Which statement describe events that occur during interphase?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?