Which of these is an example of natural selection?

A: decrease in the height of tomato plants over one generation
B: penguins migrate farther than their parents to hunt for fish due to climate
change
C: puppies having a different color coat than their parents
D: increase in insect survival rate after exposure to insecticide over many
generations

Why should the united state be concerned about air pollution in china?

In a cladogram' when does a group of organisms branch off

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species