Ecological Relationships Review II

Multiple Choice

The chase can be initiated by either the predator or the __________.

• host organism

• prey

• consumer

• apex

Multiple Choice

Some organisms use __________ to help protect them from being preyed upon by other animals.

• tactics

• physical traits

• camouflage

• sound

Multiple Choice

Ambush predation allows the animal to conserve __________, an excellent survival skill in a world where hunting may be difficult.

• power

• hunger

• energy

• strength

Multiple Choice

Unlike ambush predators who generally __________ for their potential prey to come within striking distance before consuming it, pursuit predators give chase, meaning that they essentially pursuit or chase after their prey.

• sit-and-wait

• chase

• hunt

• sit-and-read

Multiple Choice

Flounders are another fish that use __________ to catch their meals. These flat fish are found throughout many oceans in the world, but you may have to look hard to find them. By snuggling just under the top layer of ocean floor sand or pebbles, the flounder is nearly totally invisible.

• attack

• stalking

• chasing

• ambush tactics

Multiple Choice

We know that predators are secondary, tertiary or even __________ consumers that eat other organisms to obtain nutrients.

• primary

• secondary

• apex

• heterotrophic

Fill in the Blanks

Blending into the environment allows the predator to remain

to its prey until it is too late for escape.

Multiple Choice

Certain predators choose to pursue prey primarily in a group; these animals are known as __________ or group pursuers.

• crowd hunters

• pack stalkers

• pack hunters

• group stalkers

Multiple Choice

Other species choose to hunt alone. Examples of __________ are bobcats, polar bears, leopards, and pumas. Solitary carnivores don't hunt prey together, defend together, or even raise offspring together.

• solitary hunters

• solitary predators

• solo hunters

• solitary consumers

Multiple Choice

The __________ ends either when the predator successfully catches up and tackles the prey, or when the predator abandons the attempt after the prey outruns it and escapes.

• run

• ambush

• stalk

• chase

Multiple Choice

In __________, organisms interact with each other to obtain a resource, like two birds fighting over a fish.

• indirect competition

• apparent competition

• direct competition

• exploitative competition

Multiple Choice

One type of __________ is exploitative competition, when one group or individual uses so much of a resource that others cannot use it. For example, a growing wolf population could eat the whole food supply of other carnivores.

• direct competition

• indirect competition

• apparent

• intraspecific competition

Multiple Choice

Intraspecific competition occurs when individuals of the same species compete for a limited resource. True/False

• True

• False

Multiple Choice

Inter-specific competition occurs when different species compete for the same resources. True/False

• True

• False

Multiple Choice

__________ occurs when different species compete for the same resources but one species consumes the majority of the limited resource.

• apparent competition

• exploitative competition

• direct competition

• indirect competition

Multiple Choice

__________ competition occurs when two individuals that do not directly compete for resources affect each other indirectly by being prey for the same predator.

• exploitative

• direct

• apparent

• indirect

Multiple Choice

Which of these is NOT an example of inter-specific competition?

• Goats and sheep competing for grazing land

• Deer's competing for food

• Different species of predatory fish competing for prey

• Dolphins and sharks competing for bait-fish.

Multiple Choice

Which of these are conditions required for two species to compete?

• Use the same resources

• Live in different ecosystems

• Hunt during different times of the year

• Consume different prey

Multiple Choice

Which of these best describes interspecific competition?

• Individuals of different species competing against one another for resources

• Individuals of the same species competing against one another

• One species consuming the majority of a resource within an ecosystem

• Birds fighting over a worm

Multiple Choice

When a pine tree grows tall and blocks sunlight to another pine tree it is _______ competition.

• indirect

• direct

• exploitative

• apparent

Multiple Choice

Environmental change can cause apparent competition to occur within an ecosystem. True/False

• True

• False

Multiple Choice

A decrease in one prey can also affect the population of another prey within the same ecosystem, as now they will be heavily targeted by the predator. True/False

• True

• False

Multiple Select

Which of these external factors can affect ecological competition? (Select all that are correct):

• Invasive Species

• Natural Disasters

• Human Activity

• Disease

Multiple Choice

Which of these is an example of direct competition.

• Primates living in the same forest

• Bald Eagles fighting over a large fish

• I heard of sheep consuming grass

• Squirrels competing for acorns