Take a look at the picture carefully and answer the following questions from (i) to (v):
(i) While designing an aquarium what are the things you would like to include to make it a complete ecosystem?
Fishes, aquatic plants, pleco fish (algae eating fish), aerator, pebbles, fish food
Fishes, grass, plants, pleco fish (algae eating fish), fish food.
Fishes, plants, oxygen pump, food, stones.
Animals, fishes, plants, oxygen pump, food.
(1)
Take a look at the picture carefully and answer the following questions from (i) to (v):
(ii) Which one of the following is not a producer?
Blue green algae
Cactus
Fungi
Spinach
(3)
Take a look at the picture carefully and answer the following questions from (i) to (v):
(iii) Herbivores, carnivores, omnivores, and parasites all come under:
producers
consumers
ecosystem
food web
(2)
Take a look at the picture carefully and answer the following questions from (i) to (v):
(iv) Which one is not true about an ecosystem?
Ecosystem consists of living and non-living things both.
Living organisms interact with each other.
Growth, reproduction, and other activities of living organisms are not affected by the abiotic components of ecosystem.
A garden is considered an ecosystem.
(3)
Take a look at the picture carefully and answer the following questions from (i) to (v):
(v) Ecosystems can be of how many types?
Two types – man-made and natural
Two types – terrestrial and aquatic
Four types – forests, ponds, lakes, and garden
All of the above
(4)
Study the figure given below and answer the following questions from (i) to (v):
(i) What is the name of the interrelation shown in this figure?
Food chain
Food web
Trophic level
Energy conservation
(2)
Study the figure given below and answer the following questions from (i) to (v):
(ii) The series of branching lines shown in above figure appears in nature because:
the length and complexity of food chains vary.
each organism is generally eaten by two or more other kinds of organisms.
straight line food chains are not practically possible.
all of the above
(4)
Study the figure given below and answer the following questions from (i) to (v):
(iii) Which one of the following is true for a food web?
Food web does not help in stabilising the ecosystem.
Secondary consumers cannot feed on other species in the event of decrease in population of prey.
A food web provides alternative pathways of food availability.
Food webs are straight.
(3)
Study the figure given below and answer the following questions from (i) to (v):.
(iv) The main source of energy flowing in any food web is the:
animals
consumer
primary producer
sun
(4)
Study the figure given below and answer the following questions from (i) to (v):
(v) In the picture shown above concentration of a chemical absorbed from soil is likely to be highest in:
wildflowers
grass
coyote
rabbit
(3)
