liquid-filled thermometers are examples of digital devicestrue or false

List two limitations of natural selection

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies