Abiologist studying a desert ecosystem observes that the population of a lizard species increases following particularly hot, dry period that causes a snake population to decline. what could the biologist hypthesize about the roles of these two species?

a) the lizard preys on the snake

b) the lizard is a parasite of the snake

c) the snake and lizard use the same limiting resource

d) the snake is a keystone species in the ecosystem.

B.

Explanation:

Same but different because lizards are very similar to snakes. Snake are just more vicious.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.