NCERT Ecology Population Questions,answers,mock tests,grand series

Ecology Organism and Population Mock Test-10

Question No:1

Human liver fluke has two intermediate hosts in its life cycle; these are

[A] Snail and Hydra
[B] Crustacean and Fish
[C] Snail and Fish
[D] Mosquito and Snail



Question No:2

Effect of parasite on host

[A] Reduce survival
[B] Reduce growth & reproduction
[C] Reduce its population density
[D] All of them



Question No:3

Malaria parasites require which vector to spread to other hosts

[A] Snail
[B] Fish
[C] Housefly
[D] Mosquito



Question No:4

Find the correct example of Ectoparasite

[A] Lice on humans
[B] Ticks on dogs
[C] Copepods on marine fishes
[D] All are correct



Question No:5

Cuscata, a parasitic plant that is commonly found growing on hedge plants has lost its _______ and _______ in the course of evolution

[A] Root and Stem
[B] Leaves and Chlorophyll
[C] Root and Leaves
[D] Leaves and Stem



Question No:6

Female mosquito require our blood for

[A] Respiration
[B] Locomotion
[C] Digestion
[D] Reproduction



Question No:7

Which of the following is not parasite?

[A] Tapeworm
[B] Female anopheles mosquito
[C] Liver fluke
[D] Lice



Question No:8

Find out false statement

[A] Parasite that feeds on the external surface of the host organism are called ectoparasite
[B] The life cycle of endoparasite are more complex because of their extreme specialization
[C] Parasitism evolved in so many taxonomic groups from plants to higher vertebrates
[D] Endoparasites have greatly complex morphological and anatomical features along with high reproductive potential



Question No:9

Example of brood parasitism

[A] Cuckoo (koel) and Crow
[B] Crow and Parrot
[C] Parrot and Pigeon
[D] Koel and Parrot



Question No:10

Find out incorrect statement

[A] In brood parasitism (of Koel and Crow), the eggs of parasitic bird have evolved to resemble the host’s egg in size and colour to reduce the chance of the host bird detecting the foreign eggs and ejecting them from the host
[B] Majority of parasite harming the host
[C] Many parasites have evolved to be host specific in such a way that both host and the parasite tend to co-evolve
[D] Monarch butterfly acquire chemical by feeding on a poisonous weed in its adult stage, that chemical make it high distasteful to its bird



Question No:11

Which of the following shows commensalism

[A] Sea anemone and Clown fish
[B] Lichens
[C] Lice and Human
[D] Mycorrhizae



Question No:12

Commensalism is shown by all except

[A] Orchid on mango branch
[B] Cattle egret and Grazing cattle
[C] Sea anemone and Clown fish
[D] Cuckoo (Koel) and Crow



Question No:13

Lichens are mutualistic relationship between

[A] Fungus and Photosynthetic algae
[B] Fungus and Cyanobacteria
[C] Fungus and Roots of higher plants
[D] Both (a) and (b)



Question No:14

Mycorrhizae are association between

[A] Fungus and photosynthetic algae
[B] Fungus and roots of higher plants
[C] Fungus and cyanobacteria
[D] Fig plant and wasp



Question No:15

Pseudo copulation helps in pollination in

[A] Fig plant
[B] Orchid
[C] Cuscuta
[D] Sunflower