You are given a slide of a pathogen that is gram-negative and whose subcellular structures can be observed with a light microscope. what most likely is this pathogen?

This pathogen is most likely to be a fungus.

Explanation:

Fungi are eukaryotic organisms typically having chitin cell walls, but no chlorophyll or plastids. Fungi may be unicellular or multicellular. Eukaryotic pathogens such as fungus are gram-negative when stained with Gram stain. Light microscope is usually used when viewing the results of Gram stain. A gram negative fungus will not retain the dye of the Gram’s stain and it will take on a pinkish color. Subcellular structures of fungi such as endoplasmic reticulum, Golgi apparatus and mitochondrion can also be observed when a fungus is viewed under a light microscope.

the correct answer is:

a population changes in response to a change in the environment.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls