Do humans need photosynthesis to survive?

Which format should he use to present his data?

How does the study of genetic disorders such as pku biologists understand normal alleles?

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.