Hey, I think have I solved the Fermi Paradox, can someone tell me if I am or am not the first person to come up with this? So as you know, humans have obvious advantages over other animals. For instance, we have hands of which allow us to make tools and such, perhaps the odds of an organism evolving limbs like ours is extremely rare and that is what stops intelligent creatures (perhaps even more intelligent than us) from making advanced civilizations, because they can't build anything.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

In this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.