Biology
Mention if the following statements are true (T) or false (F):
(a) Snakes are primary consumers.
(b) Some humans are strictly primary consumers while others are secondary or tertiary consumers as well.
(c) No ecosystem can survive without light.
Related Questions
Assertion (A): Scavengers are considered as cleaners of the earth as they feed on dead animal and plant remains.
Reason (R): Scavengers consume the remains left by detritivores and decomposers.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Fill in the blanks :
(a) Lichens are the good example of …………… association.
(b) Two intermediate hosts of liver fluke are …………… and …………… .
(c) Evergreen trees are common flora of …………… forests.
(d) …………… will always be trophic level-1 in a food chain.
(e) …………… sanctuary is found in West Bengal which is famous for rhinoceros.
Match the following:
Column A Column B. (a) Grass (i) Carnivore (b) Deer (ii) Decomposers (c) Cobra (iii) Primary consumer (d) Vulture (iv) Autotroph (e) Microbes (v) Scavenger Rewrite the following in their correct sequence in a food chain:
(a) Snake → Grasshopper → Grass → Frog
(b) Grass → Tiger → Deer
(c) Snake → Peacock → Rat → Wheat
(d) Lizard → Grass → Crow →Grasshopper
(e) Goat → Man → Maize