Which characteristic is shared by all four cells

What does all of the organ system in a human form

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.