The diagram shows part of the lining of the human trache Х
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What is the function of cell X?
A
B
gaseous exchange
mucus removal
phagocytosis
secretion of mucus
с
D

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.

If one were to horizontally divide the earth in half at the equator each half would be a

Which planet descriptor does not apply to jupiter saturn uranus and neptune plz hurry