You inoculate Lactobacillus casei into a nitrate broth. After incubation, you observe no gas trapped in the Durham tube. You add SA and DMN and observe a color change from clear to dark pink. Afterwards, you add a milligram of zinc dust, and the solution becomes a blood red color. What form of nitrogen is present in the tube

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

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gokuson

meiosis is the correct answer