Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. why would neighboring healthy cells also die?
the death molecule is passed through desmosomes.
the death molecule is passed through plasmodesmata.
the death molecule disrupts the extracellular matrix.
the death molecule passes through gap junctions.

How energy move through ecosystem ?

Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that

Two nursing assistants are in line to wash their hands at a hospital after leaving a patient in an isolation room. the first na washes her hands and then uses her hands to turn off the faucet before drying them with a paper towel. the second na turns on the water with her hands and then proceeds to wash and dry her hands with a paper towel. which statement best describes errors demonstrated by the nursing assistants? the first na did not ensure a clean hand-washing environment, and the second na did not properly turn off the water the first na did not properly turn off the water, and the second na did not ensure a clean hand-washing environment. the first na did not properly turn off the water, and the second na did not properly use paper towels. the first na did not properly use paper towels, and the second na did not ensure a clean hand-washing environment.