Symbiotic Relationships
What type of relationship exists when a hummingbird gets nectar and a flower gets pollinated?
Mutualism
What interaction is shown when a spider catches a fly for food?
Predation
What do hummingbirds help flowers do?
Pollinate
What animal can regrow a lost arm?
Starfish
Why is the whale-and-barnacle example not a mutualistic relationship?
Whale does not benefit
What idea is shown when lichens survive because two organisms depend on each other?
Interdependence
What resource are two species competing for if they live in the same pond and both eat algae?
Food
What interaction usually increases when many organisms live in a small space and need the same resources?
Competition
What animal’s group is called a crash?
Rhinoceroses
If predators disappeared and prey numbers increased quickly, what interaction among the prey would become stronger?
Competition
In lichens, which partner makes food?
Alga or bacterium
What is competition between different species called?
Interspecific competition
What type of relationship is mistletoe taking water and nutrients from a tree?
Parasitism
What animal can sleep while standing up?
Horse
If a parasite caused the host population to drop a lot, what would most likely happen later to the parasite population?
Decrease
What do you call the organism that mistletoe lives on and takes nutrients from?
Host
What do predators help control in an ecosystem?
Prey population size
What resource can fast-growing trees take from other plants in a forest?
Sunlight
What tiny organism can survive extreme heat, extreme cold, and even outer space?
Tardigrade
If two species use almost the same niche and one is eventually pushed out, what most likely caused that outcome?
Interspecific competition