Question

symbiotic relationships worksheet
biology - 9th grade
name:
date:
period:
part a - definitions (10 pts)
fill in the blanks with the correct type of symbiotic relationship

1. - both species benefit from the relationship
2. - one species benefits, while the other is neither helped nor harmed
3. - one species benefits, while the other is harmed
4. - a long - term close interaction between two different species.
5. - when both species cooperate for survival.
6. - a relationship where one species depends on the host
7. - interaction where one species attaches to another without harming it
8. - bees and flowers are an example of this
9. - mistletoe living on a tree is an example of this
10. - a bird building a nest in a tree without affecting the tree is an example of this

Explanation:

1. Mutualism is when both species benefit.
2. Commensalism is where one species benefits and the other is unaffected.
3. Parasitism is when one species benefits and the other is harmed.
4. Symbiosis is a long - term close interaction between different species.
5. Mutualism also implies cooperation for survival.
6. Parasitism involves a species depending on a host.
7. Commensalism can involve attachment without harm.
8. Bees and flowers have a mutualistic relationship.
9. Mistletoe on a tree is a parasitic relationship.
10. A bird building a nest in a tree is commensalism.

Answer:

1. Mutualism
2. Commensalism
3. Parasitism
4. Symbiosis
5. Mutualism
6. Parasitism
7. Commensalism
8. Mutualism
9. Parasitism
10. Commensalism