Which of the following changes would eliminate the energy source that generates the convection currents in the ocean? A stopping the rotation of the earth
B Blocking off all solar radiation
C removing all salt from sea water
D eliminating producers from marine habitats

9. the history of life on earth is recorded in

Aspecies has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. which of the following will be true of this species' response to natural selection? there will be more deaths from natural selection because there is no mutation. there will be less genetic variation from recombination and a risk of not adapting quickly to environmental change. the species will increase in numbers because genetic variation is increased. the species will compensate for loss of genetic variation by hybridizing with other species. there will be fewer deaths from natural selection because sexual recombination always leads to extinction.

In which energy level are valence electrons located?