MEDIUM
Earn 100

Match List I with List II: 

List I

(Interacting species)

List II

(Name of Interaction)

A. A Leopard and a Lion in a forest/grassland I. Competition
B. A Cuckoo laying egg in a Crow's nest II. Brood parasitism
C. Fungi and root of a higher plant in Mycorrhizae III. Mutualism
D. A cattle egret and a Cattle in a field IV. Commensalism

Choose the correct answer from the options given below: 

82.61% studentsanswered this correctly

Important Questions on Organisms and Populations

MEDIUM

Assertion (A): The Monarch butterfly feeds on poisonous weeds during its caterpillar stage.

Reason (R): It helps butterfly to become distasteful to the predator.

EASY
The interaction between "Cuckoo and Crow" is an example for
MEDIUM

Match column-I with column-II and select the correct option.

Column-I Column-II
a) Commensalism i) Lichen
b) Mutualism ii) Plasmodium
c) Parasitism iii) Hawk
d) Predation iv) Orchid
MEDIUM
The figure below demonstrates the growth curves of two organisms A and B growing in the same area. What kind of relation exists between A and B?

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HARD

Given the graphs below, the interaction between species 1 and 2 can be classified as

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EASY

Match the following?

The list I List II
(i) Calotropis (a) Predator of Americana Pacific
(ii) Cactus (b) Insects and frogs cryptically coloured
(iii) Pisaster (c) Distasteful glycosides
(iv) Monarch Butterfly (d) Cardiac glycosides
(v) Camouflage (e) Predator is a moth

 

HARD
Match Column - I with Column - II
  Column-I     Column-II
a  Saprophyte  i Symbiotic association of fungi with plant roots
b Parasite ii  Decomposition of dead organic materials
c  Lichens iii Living on living plants
d  Mycorrhiza iv  Symbiotic association of algae and fungi

Choose the correct answer from the options given below:
EASY
Which of the following statements is incorrect?
EASY
If ' + ' sign is assigned to beneficial interaction, ' ' sign to detrimental and ' 0 ' sign to neutral interaction, then the population interaction represented by '+' '-' refers to
EASY
Which of the following interactions does NOT promote coevolution?
EASY
From the given options, identify the correct combination of population interactions that correspond to the symbols given here.
EASY
Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
MEDIUM

Study the following table and pick up the correct combinations.

S.No. Interaction Species A  Species B
I) Mutualism + +
II) Competition - +
III) Predation + -
IV) Parasitism - -
V) Commensalism 0 +
VI) Amensalism - 0
EASY

Match the following. The correct combinations are

The list I List II List III
(a) Fig tree (i) Highly distasteful (p) Petals of its flower
(b) Ophrys (ii) Cryptically coloured (q) Special chemical present
(c) Sea anemone (iii) Wasp (r) Clownfish
(d) Camouflage (iv) Sexual deceit (s) Developing seeds
(e) Monarch butterfly (v) Stinging cells (t) Insects and frogs

 

HARD
Which of the following statements is/are incorrect?
1) The human liver fluke, a nematode parasite, depends on two intermediate hosts (a snail and a fish) to complete its life cycle.
2) The malarial parasite needs a vector (mosquito) to spread to other host organisms.
3) In case of brood parasitism, the eggs of parasitic birds (e.g., cuckoo) are not detected and removed from the nest because the parasite's eggs resemble the host's eggs in morphology and colour.
4) A population of frogs protected from all predators would decrease indefinitely.
HARD
In some species, individuals forego reproduction and help bring up another individual's offspring. Such altruistic behavior CANNOT be explained by which of the following?
EASY
The monarch butterfly avoids predators such as birds by: