This phrase, found in darwin's origin of species, suggests that species adapt and change by natural selection and the changes aid in the survival of the organism.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

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.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above