There are 100s of different dog breeds. How did humans develop all of these different dog breeds ? Rewind the video if you are not sure. (pick one) a. breeding dogs with traits that are similar and specialized for what humans wanted.
b. natural evolution
c. random chance

Which level of consumer had access to the smallest apply of energy

What is the ecological role of food chains and food webs

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit