Question

You are about to watch a video about a scientist who studies jellies like the one shown in this image. One thing she investigates is changes to the number of jellies living in an area. What ideas do you have about why the number of organisms in an area might increase?

Answer 1

Predators decreased, food source increased, migration patterns, natural disaster or threat in normal habitat.

Answer 2

The reason behind an increased population of any organism is a lack of predators, favorable habitat, good food source.

What are jellyfishes?

Jellyfishes are umbrella-shaped, free-living marine animals.

They have long tentacles which are highly dangerous.

They are not true fishes.

The reasons for the increase in the number of organisms in an area:

Predators are animals who eat another small animal for their survival. If there is less number of predators of any organism, their population increase.

Favorable environmental conditions are another reason for the population increase of a population.

Food availability.

Thus, these are the reason for an increase in population.

Learn more about jellyfishes, here:

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