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प्रश्न
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
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उत्तर
- The asexual phase of the life cycle takes place in human beings, while the sexual phase occurs in the female Anopheles mosquito.
- The gametocyte is the infectious stage that contains the uninucleate, lancet-shaped sporozoite (approximately 1 x 7 µm). Sporozoites are produced during sexual reproduction in the midgut of Anopheles mosquitos and migrate to the salivary glands.
- The structure labelled 'A' represents the liver, while the structure labelled 'E' corresponds to red blood cells (RBC).
- A symptom of malaria is experiencing shaking chills.
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संबंधित प्रश्न
State Gause’s competitive exclusion principle.
Define the following term:
Parasitism
Which population interaction can be represented by'+''-'?
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
What is the interaction between two species called?
Give one example for the following type.
Camouflaged animal
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
"Abingdon tortoise in Galapagos islands became extinct within a decade on introduction of goats in the island." Explain giving reason.
