(d) a partial heterotroph ?
(e) a parasite ?
31. Why do organisms need to take food ? What are the two main modes of nutrition in organisms?
nutrotranh ? Name nne autotranh
Answers
Answer:
(d)Drosera is a partial heterotroph that obtains nitrogen from the insects by consuming them and it consists of chlorophyll in its leaves which perform photosynthesis for their food. Therefore it performs photosynthesis and consumes insects for its food hence it is known as a partial heterotroph.
(e) A parasite is an organism that lives in another organism, called the host, and often harms it. It depends on its host for survival. Without a host, a parasite cannot live, grow and multiply. For this reason, it rarely kills the host, but it can spread diseases, and some of these can be fatal.
31. Organisms need to take food so that energy can be released after oxidization of the food (respiration). ... Autotrophic Nutrition- mainly in plants.In this mode,organisms prepare their own food. 2. Heterotrophic Nutrition- mainly animals.In this mode,organisms depend on the autotrophs or other organisms for food.
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