d is https://www.google.com/search?sa=G&hl=en&q=figure+7+1+cell&tbm=isch&tbs=simg:CAQSkwEJ-e6n9D0E6xMahwELEKjU2AQaAAwLELCMpwgaYgpgCAMSKKYThwirE6EKoAqJCKcTiAOoE5YIxj3WPcU9mim-PZw9-T3hM5092T0aMK7ka_1bjmvEGlCdzX8kUaWyiRf1A_1Q_1pp8iPlhHZw02CyIhWy4AVlnDdcxTY1c03QSAEDAsQjq7-CBoKCggIARIEPrGIpww&ved=0ahUKEwij_sjoqvjhAhUJP60KHViVCUMQwg4IKCgA
Answer:
species richness is the number of species in an ecosystem
Radiative zone is the region of sun where energy moves as waves that transfer from atom to atom.
Answer take one piece of the squirrels diet away and see if anything has changed, if not give it that part back and take something else. repeat till change happens if nothing happens then change hypothesis
A.
Because of the urban heat island effect, less heat will be absorbed and regional temperatures will be slightly higher.