Ecological Relationships

Ecological Relationships

Multiple Choice

What would human alterations of the environment be considered? Ex. Cutting down the rain forests

• Density-independent

• Density-dependent

Multiple Choice

Which of the following is a density-independent limiting factor?

• natural disaster

• predation

• disease

• parasitism

Multiple Choice

Many fish die due to a drastic change in water temperature.

• Density-Dependent

• Density-Independent

Multiple Choice

Due to stress, large numbers of female lemmings miscarry their young and fail to reproduce.

• Density-Dependent

• Density-Independent

Multiple Choice

Indicates the greatest number of any species that can indefinitely exist within a specific habitat without threatening the existence of other species also living in that habitat

• carrying capacity

• population density

• population

• population demographics

Multiple Choice

Which of the following is a biome?

• an elephant

• a clownfish

• the savannah

• pack of wolves

Multiple Choice

A group of organisms in the same species an in the same location is known as a ___________.

• Individual

• Population

• Community

• Ecosystem

The need for :

• Food

• Water

• Space

Open Ended

Since food, space and water can be limited how do you believe it affects the relationships between organisms?

Multiple Choice

______________ occurs when more than one individual or population tries to use the same limited resource.

• Niche

• Predator-prey

• Availability

• Competition

Multiple Choice

Individuals of the same species compete for the same resources is_________ competition.

• Intraspecific

• Interspecific

Multiple Choice

Individuals of the different species compete for the same resources is_________ competition.

• Inraspecific

• Interspecific

Multiple Choice

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

• Interference

• Intraspecific

• Interspecific

• Exploitative

Multiple Choice

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

• Interference

• Intraspecific

• Interspecific

• Exploitative

Multiple Choice

One organism hunts and eats another organism.

• predation

• mutualism

• carnivore

• parasitism

Multiple Choice

Wild Pig

• Predator

• Prey

Multiple Choice

Alligator

• Predator

• Prey

Multiple Choice

How will competition affect the carrying capacity of an ecosystem for the animal in competition?

• Decrease

• Increase

• Will show not affect

• Competition does not exist in nature

Multiple Choice

Predator population lags behind prey population because......

• Increase in predators leads to decrease in prey

• Increase in predators leads to increase in prey

• Increase in predators leads to decrease in producers

• Increase in producers leads to increase in prey

Multiple Choice

A relationship between two organisms in which one organism benefits and the other is harmed.

• Mutualism

• Competition

• Parasitsm

• Commensalism

Multiple Choice

Which of the following symbiotic relationships is considered parasitic?

• Ticks feeding on a dog

• Bees transporting pollen from flowers

• Pilotfish swimming under sharks

• Birds eating the insects from the back of hippo

Multiple Choice

A tapeworm lives in the intestines of its host. Which example best describes the relationship between the tapeworm and its host?

• The tapeworm benefits from its host; however, the host is not affected.

• The tapeworm does not benefit from its host, but the host does benefit.

• The tapeworm benefits from its host, and the host is negatively affected.

Multiple Choice

An organism that lives on or in a host and causes it harm is called

• a host
• a parasite
• a cell
• a virus

Multiple Choice

Which of these best describes parasitism?

• One species benefits while another species also benefits

• One species benefits while another species is killed

• One species benefits while another species is harmed

• One species benefits while nothing happens to another species

Multiple Choice

Mistletoe takes water and nutrients from the spruce, harming the tree. This is an example of -

• Mutualism

• Commensalism

• Parasitism

• Predation

Multiple Choice

When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.

• decrease
• increase
• stay the same
• divide in half

Multiple Choice

A relationship that describe a close interaction between two different species is known as what? (This is the broad "umbrella" term.)

• Biodiversity

• Symbiosis

• Predation

• Emigration

Multiple Choice

Type of relationship: A wolf eating a rabbit.

• Predator/prey

• Parasite/host

• Producer/consumer

• Competitors

Multiple Choice

Type of relationship: A wolf eating a rabbit.

• Predator/prey

• Parasite/host

• Producer/consumer

• Competitors

Multiple Choice

A symbiotic relationship in which both organisms benefit:

• Competition.

• Mutualism.

• Commensalism.

• Parasitism.

Multiple Choice

Ants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. What is the ecological relationship?

• Cooperation

• Parasitism

• Commensalism

• Mutualism

Multiple Choice

Which symbiosis is represented in the picture? 

• parasitism 
• mutualism
• commensalism
• nonalism 

Multiple Choice

Remoras are fish that generally latch on to sharks and eat leftovers of food from the shark. This is an example of which type of ecological relationship?

• Mutualism

• Commensalism

• Parasitism

• Competition

Multiple Choice

This is known as a relationship in which both organisms involved benefit. 

• Predator-Prey
• Commensalism
• Mutualism
• Decomposition

Multiple Choice

This is known as a relationship in which one organism benefits, while the other is unaffected.

• Parasitism
• Mutualism
• Immigration
• Commensalism

Multiple Choice

Pseudoscorpions often hitch rides on the backs of large beetles or true bugs. What is the ecological relationship?

• Mutualism

• Commensalism

• Parasitism

• Cooperation

Multiple Choice

Pseudoscorpions often hitch rides on the backs of large beetles or true bugs. What is the ecological relationship?

• Mutualism

• Commensalism

• Parasitism

• Cooperation