After watching plants develop, Schleiden concluded that all parts of a plant are made from plant cells. Which tenet of the cell theory later developed from the conclusion?
O Energy flow occurs in cells.
All organisms contain cells.
New cells are different from old cells.
There are similar physical properties in all cells.

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.

What two conditions must be present for osmosis to occur?

Which part of the microscope controls the amount of light which shines through the lens?