Question

identify each definition with the key terms in this unit. commensalism competition host mutualism parasite parasitism predation predator prey
term definition

1. relationship in which one organism kills & eats another organism
2. the relationship between a parasite and its host
3. partnership between 2 species in which both benefit
4. relationship in which one species benefits & other neither harmed/helped
5. relationship in which organisms fight over same limited resources
6. organism that lives in or on another organism; feeds on it without immediately killing it
7. organism that has its nutrients being taken from
8. organism that kills and eats another organism
9. organism that is killed by and eaten by another organism

read each description and identify the type of interaction (predation, competition, parasitism, mutualism, commensalism) between species.

1. wasps lay eggs on caterpillar so their young have food when they hat
2. wolves chase down a deer

Explanation:

1. Predation is when one organism kills and eats another.
2. Parasitism is the relationship between a parasite and its host.
3. Mutualism is a partnership where both species benefit.
4. Commensalism is when one species benefits and the other is neither harmed nor helped.
5. Competition is when organisms fight over the same limited resources.
6. A parasite lives in or on another organism and feeds on it without immediately killing it.
7. A host is an organism that has its nutrients being taken from.
8. A predator is an organism that kills and eats another organism.
9. Prey is an organism that is killed by and eaten by another organism.
10. Wasps laying eggs on a caterpillar is parasitism as the wasp - larvae benefit at the expense of the caterpillar.
11. Wolves chasing down a deer is predation as the wolves kill and eat the deer.

Answer:

1. predation
2. parasitism
3. mutualism
4. commensalism
5. competition
6. parasite
7. host
8. predator
9. prey
10. parasitism
11. predation