Questions

TRUE / FALSE

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3 questions · timed · auto-graded

Question 11 Mark
No ecosystem can survive without light
Answer
True
No ecosystem can survive without light
The plants and animals and micro organisms present at a place and interacting with the atmosphere like sun light, air, water, soil and warmth and dwelling at a place like, pond, desert, forest, rock form the ecosystem as pond ecosystem, desert ecosystem forest ecosystem. So ecosystem cannot survive without the presence of light. As the flora $($plants$)$ living in that ecosystem can only make food in the presence of light and the animals $($Fauna$)$ living in that ecosystem get the food from the plants of that ecosystem. So flora in that area cannot survive in that area without light and animals living in that area will not get the food and the plants and animals will perish and the ecosystem cannot survive.
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Question 21 Mark
Some humans are strictly primary consumers & some others are of other types of consumers also
Answer
True
Some humans are strictly primary consumers and some others are of other types of consumers also
It is true that humans are vegetarians and eat plants or plant products. So these humans are vegetariBut there are certain humans which eat the flesh or eggs of other animals. These are carnivores and humans living plants are called Herbivores
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Question 31 Mark
Snakes are primary consumers
Answer
False
Snakes are primary consumers .
No the snakes are not primary consumers as snakes eat rats and frogs as these are primary consumers which eat plant products. As snakes eat the primary consumers so the snakes are secondary consumers.
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TRUE / FALSE - BIOLOGY STD 8 Questions - Vidyadip