Ecosystem Interactions Practice QuizVersion en ligne Ecosystem Interaction Practice Quiz par Benjamin D Morgan 1 relationship in which two species live closely together a resource b mutualism c succession d symbiosis 2 A living relationship between two species in which one organism is harmed is called... a mutualism b parasitism c commensalism d niche 3 anything that an organism needs to live, ex. food, water, space a carrying capacity b resource c succession d denitrification 4 symbiotic relationship in which one organisms benefits and the other organism is not affected a invasive (non-native) species b mutualism c Nitrogen d commensalism 5 symbiotic relationship in which both organisms benefit a Competition b Nitrogen Fixation c Mutualism d Energy Pyramid 6 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? a Predator-Prey b Mutualism c Commensalism d Parasitism 7 This is known as a relationship in which both organisms involved benefit. a Predator-Prey b Commensalism c Mutualism d Decomposition 8 A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of: a Mutualism b Commensalism c Decomposition d Parasitism 9 A symbiotic relationship that involves species having to fight for something they both need or want a Competition b Predation c Commensalism d Par 10 How many primary consumers are there in this food web? a 1 b 2 c 3 d 4 11 Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this? a Mutualism b Commensalism c Parasitism d Competition 12 What type of symbiosis is this? *Hermit crabs find shells left by snails that have died and move in. * Snails die and leave behind their shells. a Commensalism b Mutualism c Parasitism d Predation 13 The crocodile and bird have a _______________ relationship. The crocodile benefits by having its teeth cleaned. The bird benefits by gaining food and protection. Both animals benefit from this relationship. a Parasitism b Predator and prey c Mutualism d Commensalism 14 A frog eats a fly. The frog and fly are demonstrating ________. a Mutualism b Competition c Parasitism d Predator/Prey 15 A tapeworm inside a dog is a Competition b Predation c Commensalism d Parasitism 16 Plants both trying to get sunlight are a Competition b Commensalism c Mutualism d Parasitism 17 How many herbivores are in this web? a 3 b 1 c 2 d 4 18 Where do decomposers go in your food chain? a at every level b at the beginning c at the end d they don't belong in a food chain 19 symbiotic relationship in which one organism benefits and the other organism is harmed a secondary succession b predation c pioneer species d parasitism 20 a relationship between two in which one species feeds on the other species. a chemosynthesis b predation c cellular respiration d commensalism 21 This is an example of what camoflauge? a mimicry b blending c costume 22 The walkingstick uses what type of camouflage.. a sticks b color changing c mimicry d patterns 23 What is the phytoplankton (floats in the water) AND seaweed (attached to the ocean bottom) competing for? a food source resources b habitat (living space) c food and habitat (living space0 d water, detritous (nutrients), and liht 24 A volcanic eruption occurs thousands of miles away but sends ash to cover the area blocking light from the sun a little bit. The light can still reach the water in large amounts, but is less able to reach all the way to the ocean bottom. What species is more able to get the light resource? a seaweed b phytoplankton 25 What will happen to the phytoplankton population AND seaweed population due to this volcanic eruption that blocks light in the atmosphere. a phytoplankton and seaweed population increases b phytoplankton and seaweed population decreases c phytoplankton population is unaffected. Seaweed population decreases 26 If the seaweed population decreases then... a Crab population decreases b Crab population increases c Crab population is unaffected 27 If the seaweed population decreases then... a Squid population decreases b squid population increases c Squid population is unaffected 28 If the seaweed population decreases then... a penguin population decreases b penquin population increases c penguin population is unaffected 29 If the seaweed population decreases then... a killer whale population decreases b killer whale population increases c killer whale population is unaffected 30 A disease strikes the leopard seal. This causes the leopard seal population to... a increase b decrease c unaffected 31 A disease strikes the leopard seal. The population of the leopard seal decreases. What happens to the population of the penguin a increase b decrease c unaffected 32 A disease strikes the leopard seal. The population of the leopard seal decreases. What happens to the population of the killer whale a increase b decrease c unaffected 33 A disease strikes the leopard seal. The population of the leopard seal decreases. What happens to the population of the fish a increase b decrease c unaffected 34 A disease strikes the leopard seal. The population of the leopard seal decreases. What happens to the population of the krill a increase b decrease c unaffected 35 A disease strikes the leopard seal. The population of the leopard seal decreases. What happens to the population of the blue whale a increase b decrease c unaffected 36 Changes in the amount of a resource results in changes in the population of... a All the species in the ecosystem b Most the species in the ecosystem c Some of the species in the ecosystem d A single species 37 When resources are scarce (in low supply) then competition between species... a increases b decreases c unaffected 38 Which organism is in a predator relationship with the penguin? a blue whale b leopard seal c squid d elephant seal 39 Which organism is in a competitive relationship with the penguin? a blue whale b leopard seal c squid d elephant seal 40 Which organism is in a prey relationship with the penguin? a blue whale b leopard seal c squid d elephant seal 41 Which species is in a predator relationship with the krill? a blue whale b zooplankton c phytoplankton d squid 42 Which species is in a competition relationship with the krill? a blue whale b zooplankton c phytoplankton d squid 43 Which species is in a similar relationship to a prey relationship with the krill? a blue whale b zooplankton c phytoplankton d squid 44 The krill are competing with the zooplankton for... a food source b habitat c light and water d food and habitat 45 The krill population decreases. This causes their competition (zooplankton) to... a Increase b Decrease c Unaffeceted 46 The krill population decreases. This causes the leopard seal to FIRST do what? Careful...follow the food chain a increase b decrease c unaffected 47 What, if anything, is the seaweed competing with? a crab b zooplankton c phytoplankton d nothing 48 The krill population decreases. This causes the elephant (not leopard) seal to FIRST do what? Careful...follow the food chain a increase b decrease c unaffected
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