During a study, a biologist counts the allele frequency of the colors of beetles. In the original population, there were 25% green, 35% blue, and 40% golden beetles. She took a small sample from the original population and bred them for 5 years. At the end of the study, 5 years later, there were 10% green, 60% blue, and 30% golden beetles. What did she observe? Gene flow

Genetic drift

Mutations

Artificial selection

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.

In each transformation of energy , some energy what?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.