The first one. Mary asked how much the puppy cost.
The answer is pronuclei. A pronuclei is the state of the
nucleus of either the sperm or the ovum after the sperm has entered the ovum
but the two nuclei have not yet fused. When the sperm enters the ovum, the membrane
of the sperm pronuclei dissolves hence leaving no barrier for the two genetic
materials to combine.
Because fungi are not necessarily green and make food using other methods, fungi does not have chloroplast.
Species.
Different species are defined based on reproductive isolation.