Asked by Steve

A biologist studying a desert ecosystem observes that the population of a lizard species increases following a particularly hot, dry period that causes a snake population to decline. What could the biologist hypothesize about the roles of these two species?
·
The lizard preys on the snake.
·
The lizard is a parasite of the snake.
·
The snake and lizard use the same limiting resource.
· The snake is a keystone species in the ecosystem.

my answer is D
Answered by Damon
I think the snake may be a keystone species. If the snakes do not eat enough lizards the lizard population grows out of control.
Answered by 😐🍁😐🍀😐🍁😐🍀
.. is this for a test or for a PBA
Answered by Ill Manage Thx
Yes it is for the PBA but its useful info :)
Answered by Beth Lowery
The answer is the snake and lizard use the same limiting resource. Because
the lizard is out eating the food and the snakes arn`t because it is to hot for them so they are starving and the lizard are getting all of the food.