Ecosystems Review Third Grade Science Ecosystems  An ecosystem ... - Free Printable

Let’s think about what “limiting factors” mean in nature.

A limiting factor is something that stops a population from growing too big — like not enough food, water, space, or even death from predators or disease.

In this picture, we see animals living near a pond: deer, frogs, fish, birds, insects. All of them need things to survive — food, clean water, shelter. But if something goes wrong — like the pond dries up, or a predator eats too many frogs, or there’s not enough plants for the deer — then some animals might die.

The title says: “Limiting factors: death”

That means we’re focusing on how death can be a limiting factor. Death reduces the number of animals in a population. If more animals die than are born, the population gets smaller. That’s how death limits growth.

So, let’s figure it out:

Step 1: What is a limiting factor?
→ Something that controls how big a population can get.

Step 2: How can death be a limiting factor?
→ When animals die (from hunger, sickness, predators, etc.), the population doesn’t grow as fast — or even shrinks.

Step 3: Look at the scene. Which animals could be affected by death as a limiting factor?
→ The deer could starve if there’s no grass.
→ Frogs could be eaten by birds.
→ Fish could die if the water gets polluted.
→ Even plants could die if there’s no rain.

But the question isn’t asking us to list all possibilities — it’s asking us to understand that death is one way populations are kept in check.

So, putting it together:

Death is a limiting factor because it removes individuals from a population, preventing it from growing without limit. In nature, nothing grows forever — death helps balance ecosystems.

Final Answer:
Death is a limiting factor because it reduces the number of organisms in a population, helping to keep ecosystems balanced and preventing overpopulation.