What is the name of flexible barrier around cell called

Babies with very low or very high weight are less likely to survive .

5) these are organisms where the genetic material is not bound by a nucleus. they are usually unicellular.

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.