Identify the incorrectly matched pair:
Population interaction |
Species A |
Species B |
|
1. |
Mutualism |
+ |
+ |
2. |
Predation |
+ |
- |
3. |
Parasitism |
- |
- |
4. |
Commensalism |
+ |
0 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Statement I: | Parasitism has evolved in many taxonomic groups from plants to higher vertebrates. |
Statement II: | Many parasites have evolved to be host-specific and both tend to co-evolve. |
Statement III: | All parasites have only one primary and one intermediate host. |
Statement IV: | Only a few of the parasites harm their hosts. |
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
1. | Only I and II | 2. | Only III and IV |
3. | Only I and III | 4. | Only II and IV |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Statement I: | The morphological and anatomical features of endoparasites are greatly simplified but their reproductive potential is very high. |
Statement II: | Unlike ectoparasites, endoparasites live inside the host body at different sites and their life cycles are more complex. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The human liver fluke depends on two intermediate hosts that are:
1. | A crustacean and a fish |
2. | A snail and a fish |
3. | An echinoderm and a fish |
4. | Fishes of two different species |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Cuckoos laying their eggs in the nests of crow is an example of:
1. | Ectoparasitism | 2. | Endopararsitism |
3. | Hyperparasitism | 4. | Brood parasitism |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
All the following relations are examples of commensalism except:
1. | Sea anemone and clown fish |
2. | Cattle egret and grazing cattle |
3. | Barnacles growing on the back of whale |
4. | Cuscuta growing on hedge plants |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.