Final answer:
Changing the snake and hawk populations can have various effects on other organisms within the first month, including increased plant growth, decline in rodent population, rise in amphibian numbers, and expansion of insect population.
Step-by-step explanation:
When the snake and hawk populations change, it can have various effects on other organisms within the first month:
A) Increased plant growth: If the snake population decreases, there may be less predation on rodents, which could lead to an increase in the rodent population. This can result in more rodent herbivory and reduce the growth of plants.
B) Decline in rodent population: If the hawk population increases, they may prey on more rodents, leading to a decline in the rodent population.
C) Rise in amphibian numbers: If the snake population decreases, there may be less predation pressure on amphibians, allowing their numbers to rise.
D) Expansion of insect population: If the hawk population increases and they prey on more rodents, there may be fewer predators for insects, which can result in an expansion of the insect population.