1) a lichen is actually composed of two organisms: a fungi and a blue-green algae. both organisms benefit from this relationship. what would we call this relationship? a. mutualism b. parasitism c. predation 2) in any ecosystem, the organisms for resources, such as food, water, and space. a. compete b. fight c. kill 3) in the savanna, a lion would be the while the water buffalo would be the a. predator, prey b. prey, predator c. parasite, host

Answers:

Question 1 Option A Mutualism

Question 2 Option A compete

Question 3 Option A predator, prey

Explanation:

Q 1. Mutualism is the interaction between species where both the individuals involved benefit from each other.

In a relation between fungi and blue green algae known as lichen, as bot hare benefiting from each other it is a case of mutualism.

Q 2. Since, there are limited number of resources such as food, water and space are available in the ecosystem, the organisms compete with each other for the limited resources.

Q 3. A predator prey relation is the one in which one organism (predator) kills the other organism (prey) for food.

Since, the lion kills the water buffalo , the lion is the predator and the buffalo is the prey.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.