Unit 1.2 Ecological Relationships

Multiple Choice

⚡Which of the following would be and ABIOTIC factor for a tree living a forest? (Unit 1.1)

• A caterpillar eating its leaves

• Wind blowing through its branches

• A bird nesting in it branch

• Fungus growing on its roots

Open Ended

📽 What was the term used to describe the relationship between the clownfish and the sea anemone? Describe their relationship.

Multiple Choice

🛑A general term for a relationship that describes a close interaction between two different species is known as what?

• Biodiversity

• Symbiosis

• Predation

• Emigration

Multiple Choice

🛑Which term describes this statement: All the populations of all the different species that live together in a particular area

• Mutualism

• Community

• Commensalism

• Predator/Prey

Multiple Choice

🛑In a symbiotic relationship BOTH organism ALWAYS benefit.

• True
• False

Multiple Choice

🛑When both organisms benefits.

• Competition

• Parasitism

• Commensalism

• Predation

• Mutualism

Multiple Choice

🛑A lichen is composed of two organisms, a fungus and a cyanobacterium. The fungus provides a growing surface, moisture, and nutrients to the cyanobacterium. The cyanobacterium provides food to the fungus. This relationship is considered to be an example of which of the following?

• Commensalism
• Parasitism
• Predation
• Mutualism

Multiple Choice

🛑When one organism benefits while the other organism is neither helped or hurt.

• Competition

• Parasitism

• Commensalism

• Predation

• Mutualism

Multiple Choice

🛑Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism

• commensalism

• competition

• predation

Multiple Choice

🛑When one organism benefits while the other organism is hurt or harmed.

• Competition

• Parasitism

• Commensalism

• Predation

• Mutualism

Multiple Choice

🛑Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

• Mutualism

• Parasitism

• Commensalism

• Predation

Match

🛑Match the following

Predation

Mutualism

Parasitism

• Predation

• Mutualism

• Parasitism

Multiple Choice

🛑A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

• Predator-Prey
• Commensalism
• Mutualism
• Parasitism

Multiple Choice

🛑Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 

• parasitism
• commensalism
• mutualism

Multiple Choice

🛑Tapeworms live in the intestines of dogs and absorb nutrients from food the dog eats. Which best describes the outcome of this relationship?

• The dog and tapeworm both become ill. 
• The dog becomes ill, and the tapeworm benefits. 
• The tapeworm and dog helpe ach other survive. 
• The tapeworm helps the dog survive. 

Multiple Choice

🛑E. coli are bacteria that live in the intestines of humans, where they aid in digestion and produce essential vitamins, and they get access to food and protection. What type of ecological relationship exists between E. coli and humans?

• Mutualism
• Competition
• Commensalism
• Parasitism

Multiple Choice

🛑Epiphytes are plants that grow on other plants, such as trees, to access sunlight and nutrients. What type of ecological relationship exists between epiphytes and trees, where the epiphytes benefit by having a place to grow and access to sunlight, while the trees are neither harmed nor helped?

• Mutualism

• Parasitism

• Competition

• Commensalism

Multiple Choice

🛑When they land in a flower, the bees get some pollen on their hairy bodies, and when they land in the next flower, some of the pollen from the first one rubs off, pollinating the plant. This is known as a relationship in which both organisms involved benefit, called:

• Predator-Prey

• Commensalism

• Mutualism

• Decomposition

Multiple Choice

🛑Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism
• commensalism
• mutualism

Multiple Choice

🛑A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Multiple Choice

🛑A mongoose eating ticks off a warthog, or a starling eating ticks off a cow are examples of what type of symbiotic relationship?

• Cooperation

• Parasitism

• Commensalism

• Mutualism

Multiple Select

📽 What are the three ecological relationships?

• Symbiosis

• Mutualism

• Competition

• Predation

• Commensalism

Open Ended

📽 According to the video, What could happen if two organism's niche overlaps?

Multiple Choice

🛑When one organism eats another organism.

• Competition

• Parasitism

• Commensalism

• Predation

• Mutualism

Multiple Choice

🛑What is the relationship shown?

• Predation

• Commensalism

• Competition

• Parasitism

• Mutualism

Multiple Choice

🛑When two organisms fight for the same resource

• Competition

• Parasitism

• Commensalism

• Predation

• Mutualism

Multiple Choice

🛑Organisms of two species using the same limited resource and having a negative impact on one another, such as hyenas and lions both hunting zebra, represent what type of relationship?

• commensalism

• predator-prey

• mutualism

• competition

Fill in the Blank

🛑Ecosystems with greater __________ tend to be more resistant to

disturbances and therefore, have greater ecosystem stability.

Multiple Choice

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

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