A quadrant streak is the answer
Answer:
a. Capsules
Explanation:
Capsules are features of bacteria cell. A bacterial capsule is a structure made up of polysaccharides and proteins that functions to prevent pathogenic bacteria from getting engulfed (phagocytosid) by the immune system (white blood cell).
According to this question, capsules are bacteria structure that aid in antiphagocytosis of the bacteria. Gjj
The abiotic factor is the amount of oxygen. Abiotic means non-living, and all the other answer choices reference living things.
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In fish, the heart only has one atrium and one ventricle. The oxygen-depleted blood that returns from the body enters the atrium, and then the ventricle, and is then pumped out to the gills where the blood is oxygenated, and then it continues through the rest of the body.
