1 RIGHT AWNSER GET BRAINLIEST Which of these statements best explains how natural selection provides evidence to the scientific theory of evolution? (4 points)

It shows how organisms choose to adapt to changing Earth conditions.

It proves that natural selection always leads to greater complexity in organisms.

It shows how organisms with perfect traits can be created to suit the environment.

It proves that some organisms with specific adaptations survive better than others.

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.