Mutual relations of organisms in nature

We can describe the rivalry of songbirds about the territory as:
1. symbiosis
2. cooperation
3. competition
What is the name of the coexistence, in which species can exist side by side, they do not cooperate, but do not obstruct each other?
1. symbiosis
2. coexistence
3. competition
Who is one of the ectoparasites?
1. flea
2. tapeworm
3. roundworm
What are blood flukes - Schistosoma haematobium ?
1. symbiont - the organism living in symbiosis with another, or other organisms
2. endoparasite
3. ectoparasite
Who is the carrier of Lyme disease?
1. tick
2. roundworm
3. blood flukes
What substance do the legume plants get from the coexistence with bacteria?
1. hydrogen
2. oxygen
3. nitrogen
Who uses protocooperation?
1. legume plants + bacteria
2. pollinators + plants
3. tick + mammals
What is the name of the organism where algae and sponges live in symbiosis?
1. lichen
2. moss
3. mistletoe
Hemiparasites are:
1. tick
2. flea
3. mistletoe
A flea is:
1. ectoparasite
2. endoparasite
3. symbiont