Help please ASAP A species slowly loses numbers and goes
through natural selection until no individuals
are left. This describes what type of
extinction?
A evolved extinction
B. background extinction
C. mass extinction
D. endangered extinction

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

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.