Lactic acid fermentation is a form of respiration. 1. Aerobic
2. Anaerobic
3. Photosynthesis
4. Protein

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

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.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?