Answer:
1. circulate through the slug, engulfing bacteria
Explanation:
A sentinel cell is a cell of the immune system that is in charge of "eating" any kind of parasite in the body. In this case, it circulates through the slug and whenever it sees a bacterium, virus or foreign object, the sentinel cell engulfs it immediately.
Once the sentinel cell has eaten the bacterium, it produces several enzymes and substances that degrade the bacterium.
The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.
Tbh idek kid i think its mass
El Nino is caused by water at the equator near the Eastern Pacific ocean becoming warm. This warmness causes the water to vaporize and rise up. Similarly, the water also makes the atmosphere warm, allowing the moisture-rich air to develop into fierce rains, ultimately causing the increased precipitation during that year. The El Nino year 1997 is a famous example of this event.