3. Elephants in certain areas in Africa have been found to be born without tusks where poaching (hunting) seems to have had a great impact on wild populations. Could this be the result of a
mutation? Explain why this trait could become more prevalent in these wild populations.

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