The hardy-weinberg principle is that genetic frequencies in a
a. will remain stable from generation to generation.
b. will always be changing.
c. will not be affected by environmental changes.
d. are always in a 3: 1 ratio

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !