Which of the following statements is NOT important to Darwin's theory of natural selection?

a) All species have the ability to produce more offspring than can live and reproduce.
b) Variation is found in all natural populations.
c) Offspring tend to inherit characteristics acquired by their parents during their lifetimes.
d) Some variation found in natural populations is heritable.
e) None of the above choices is correct; all are important to his theory.

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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.