the head of a pin is approximately 1mm in diameter. How many prokaryotic cells would fit lengthways across it?

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

Which factor that affects biodiversity?

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