2.How do molecules move across the placenta by diffusion? (Explain.) Example: During the process of diffusion, molecules move across the placenta by …….

How will technology impact medicine in the future?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Using meiosis, the sporophyte produces spores that are .