QUESTION: A genetic change that occurs in a body cell of a
mouse will not contribute to the evolution of the
species because

a. body cell mutations will cause the cell to die
before it reproduces
the evolution of a species can result from
changes in reproductive cells, not body cells
C. random changes are repaired by enzymes
before they are passed on to offspring
d. the evolution of a species is caused by
natural selection, not genetic variation

What did hunter gathers do to alter the environment?

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.

20 the compound al(nh3)2 has atoms of nitrogen.