C D Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves
limestone rocks?
O atmosphere, cryosphere, geosphere
O cryosphere, hydrosphere, biosphere
O geosphere, atmosphere, hydrosphere
O biosphere, atmosphere, cryosphere

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Which statement best describes the role of religion and culture in ancient medicine?