How does the magnolia flower stay alive in it's environment?

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

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.

Nucleic acid certain protein cell membranes certain carbohydrates