Question

What will happen if a drought causes the population of grass to decrease?

Answer 1

The other populations will decrease.

Step-by-step explanation:

If the grass population decreases, then the grasshoper population will decreace, causing the mice population to decrease, which will lead to the decrease in owl population.

Answer 2

The grass is the producer. If it died, the consumers that feed on it - rabbits, insects and slugs - would have no food.

Step-by-step explanation:

They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone.

Hope this helps