/A nerve impulse is an electrical charge running across a neuron. Explain why the simulation supports this explanation.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Explain why phospholipid molecules form a bilayer. (3 marks)

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 .