Ecology lesson 1- part 2

Which of these levels of organization includes all the other levels?

• community

• ecosystem

• individual

• population

Lack of iron in seawater can restrict the growth of certain plankton populations. Iron is what kind of factor for marine plankton?

• distribution

• limiting

• tolerance

• biotic

Which letter represents the zone of intolerance for the factor in question?

• A

• B

• C

• D

Which letter on the graph represents the zone of physiological stress?

• A

• B

• C

• D

Suppose two leaf-eating species of animals live in a habitat where there is a severe drought and many plants die as a result. which term describes the kind of relationship the two species probably will have?

• predator-prey

• symbiotic

• competitive

• abiotic

One organism benefits, while another is unharmed during a long-term relationship between the two. what type of relationship is that?

• competition

• parasitism

• predation

• commensalism

• mutualism

A tick becomes lodged on the skin of a hiker. 

• competition

• parasitism

• predation

• commensalism

• mutualism

Coyotes eat mice and rabbits.

• competition

• parasitism

• predation

• commensalism

• mutualism