Which is an example of how the peripheral nervous system the body maintain its internal environment? muscles produce keratin so that hair can grow stronger. sweat glands break down the food that is consumed. muscles contract rapidly to produce heat on a cold day. the brain recalls information to take a test.

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.