Viking I and Viking 2 were launched in the 1970s and provided us with some fantastic images of another world in our solar system. Where did they land? A. Mars B. Venus C. Mercury D. the Moon

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

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.

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