B. Clade 1 is ancestral to all the other clades
The milky way is your answer
Water. the only 4 macromolecules are nucleic acid, carbohydrate, lipids, and protein
The garden plants and snails stay balanced as they are still being eaten. However, if the cat is removed, the birds will overpopulate and then the snail would be eaten and decrease faster which gives garden plants an increase in population due to the decrease in snails. Hope this helps!
