Mutualism

Q.

Lichens are the associations of:

1. bacteria and fungus

2. algae and bacterium

3. fungus and algae

4. fungus and virus

Q.

In symbiosis both the organisms are benefited.

1. True
2. False

Q. Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

1. Banana
2. Yucca
3. Hydrilla
4. Viola

Q. Interaction of algae and fungi in lichen is an example of mutualism while that of bees and flowers is an example of mutualism.

1. dependent
2. independent
3. interlinked
4. related

Q. Among the following, between which of the two, the relationship is not an example of commensalism?

1. Orchid and the tree on which it grows
2. Cattle egret and grazing cattle
3. Sea anemone and clown fish
4. Female wasp and fig species

Q. Match column I with column II and select the correct option from the codes given below.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Commensalism& \left(i\right)Oneinhibited,otherunaffected\\ B.Parasitism& \left(ii\right)Onebenefitted,otherunaffected\\ C.Mutualism& (iiiBotharebenefitted\\ D.Amensalism& \left(iv\right)Onebenefitted,otherharmed\end{array}$

1. A -(iv), B -(ii), C -(iii), D -(i)
2. A -(iii), B -(iv), C -(ii), D -(i)
3. A -(ii), B -(iv), C -(iii), D -(i)
4. A -(ii), B -(iv), C -(i), D -(iii)

Q. State whether true or false
Mutualism is an interaction where both organisms benefit from each other.

1. True
2. False

Q.

Association between Sea Anemone and Hermit crab in gastropod shell is that of

1. Parasitism

2. Ammensalism

3. Mutualism

4. Symbiosis

Q.

Study the following statements about Adamsia and select your answer from the answer code.

(A) It is a parasite on clownfish.

(B) It is an example of symbiotic mutualism along with clownfish

(C) It is called sea anemone.

(D) It is called hermit crab.

1. A and B are correct

2. B and C are correct

3. C and D are correct

4. A and D are correct

Q.

An association between two individuals or populations where both benefit and neither can survive without the other is

1. Competition

2. Commensalism

3. Mutualism

4. Amensalism

Q.

Different types of interactions and the nature of interactions between species A and B are given in column I and II respectively. Choose the correct answer from the answer key where they are matched.

$\begin{array}{cc}ColumnI& ColumnII\\ A.Mutualism& p.BeneficialtoAnoeffectforB\\ B.Competition& q.BeneficialtobothAandB\\ C.Parasitism& r.beneficialtoAandharmfulforB\\ D.Predation& s.BeneficialtoAandharmfultoB\\ E.Commensalism& t.HarmfultobothAandB\end{array}$

1. A- t, B-s, C-p, D-q, E-r

2. A- p, B- r, C- q, D- t, E- s

3. A-q, B- t, C-s, D-r, E-p

4. A- r, B-p, C-q, D-s, E-t

Q.

Which of the following organisms are in symbiosis in a mycorrhiza?

1. Fungus-Fungus

2. Alga-Alga

3. Alga-Fungus

4. Fungus-Vascular plant

Q.

Choose the wrong option:

1. Predation - one benefits and the other suffers

2. Commensalism - one benefits and the other is unaffected

3. Amensalism - one is harmed, other unaffected

4. Mutualism - both species are harmed