5-If a farmer sprays a pesticide onto a field and kills half ofthe insect pests, he has caused a reduction in________.
a. field capacity
b. carrying capacity
c. population size
d. More than one of the above
6-What type of survivorship curve would you expect for a plantspecies in which only a few seeds are produced and most of thesesurvive to produce adult plants?
a. type I
b. type II
c. type III
7-An ecological niche is an organism's_______ in anecosystem.
a. location
b. habitat
c. resources
d. function
8-No matter how rapidly populations grow, they eventually reacha limit and begin to stabilize. This is called the______________.
9-Unicellular algae live in the tissues of coral animals. Thealgae provide food for the coral, while the coral provides a stablehome for the algae. This is an example of
a. Parasitism
b. Commensalism
c. Mutualism
10-The vast majority of energy taken into an ecosystemis____________.
a. converted into biomass by plants.
b. utilized by secondary consumers.
c. lost as heat.
d. used by the primary consumers.
e. concentrated in the decomposers.
11-A farmer is using an insecticide to treat his crops. Whilemost insects do not survive their first exposure to the insecticidesome have a gene that enables them to survive. When these survivorsreproduce they will likely pass along this resistance to theiroffspring. This results in an increase in numbers of the insectsover time. Which of the following processes applies to thissurvival?
a. cloning
b. mutation
c. natural selection
d. genetic engineering
12-What is the ecological relationship between insects andcrops?
a. mutualism
b. competition
c. predation
13-Sea anemones growing on the backs of crabs without damagingthe crabs are an example of
a. Parasitism
b. Commensalism
c. Mutualism
14-Which of these is a population density-independent regulatingfactor?
a. Competition
b. Predation
c. Size of population
d. Weather
e. Resource availability
15-Producers are_________.
a. Autotrophs
b. Herbivores
c. Omnivores
d. Carnivores
16-If biological magnification occurs, the ___ will have thehighest levels of toxins in their systems.
a. producers
b. herbivores
c. primary carnivores
d. top carnivores
17Given the amount of sunlight that hits the plants on ourplanet, and the ability of plants for rapid growth andreproduction, how come we arenât all hip deep in dead plants?
5-If a farmer sprays a pesticide onto a field and kills half ofthe insect pests, he has caused a reduction in________.
a. field capacity
b. carrying capacity
c. population size
d. More than one of the above
6-What type of survivorship curve would you expect for a plantspecies in which only a few seeds are produced and most of thesesurvive to produce adult plants?
a. type I
b. type II
c. type III
7-An ecological niche is an organism's_______ in anecosystem.
a. location
b. habitat
c. resources
d. function
8-No matter how rapidly populations grow, they eventually reacha limit and begin to stabilize. This is called the______________.
9-Unicellular algae live in the tissues of coral animals. Thealgae provide food for the coral, while the coral provides a stablehome for the algae. This is an example of
a. Parasitism
b. Commensalism
c. Mutualism
10-The vast majority of energy taken into an ecosystemis____________.
a. converted into biomass by plants.
b. utilized by secondary consumers.
c. lost as heat.
d. used by the primary consumers.
e. concentrated in the decomposers.
11-A farmer is using an insecticide to treat his crops. Whilemost insects do not survive their first exposure to the insecticidesome have a gene that enables them to survive. When these survivorsreproduce they will likely pass along this resistance to theiroffspring. This results in an increase in numbers of the insectsover time. Which of the following processes applies to thissurvival?
a. cloning
b. mutation
c. natural selection
d. genetic engineering
12-What is the ecological relationship between insects andcrops?
a. mutualism
b. competition
c. predation
13-Sea anemones growing on the backs of crabs without damagingthe crabs are an example of
a. Parasitism
b. Commensalism
c. Mutualism
14-Which of these is a population density-independent regulatingfactor?
a. Competition
b. Predation
c. Size of population
d. Weather
e. Resource availability
15-Producers are_________.
a. Autotrophs
b. Herbivores
c. Omnivores
d. Carnivores
16-If biological magnification occurs, the ___ will have thehighest levels of toxins in their systems.
a. producers
b. herbivores
c. primary carnivores
d. top carnivores
17Given the amount of sunlight that hits the plants on ourplanet, and the ability of plants for rapid growth andreproduction, how come we arenât all hip deep in dead plants?
