In a food chain, the initial organism is usually :
(a) photosynthetic
(b) herbivore
(c) saprophytic
(d) parasitic.
(a) photosynthetic The initial organism of a food chain is the producer, which produces food through photosynthesis.
One of the following organisms has a saprophytic mode of nutrition. This organism is : (a) mushroom (b) malarial parasite (c) leech (d) lice
The sea water contains water beetles, tadpole, fish and weeds.
(a) Write a food chain comprising all the given organisms.
(b) Which organisms in the food chain are (i) herbivore, and (ii) carnivores?
(c) Which organisms are (i) predators, and (ii) prey?
(d) Which organisms can trap solar energy to make food?
(e) Which organism is a secondary consumer?