Cuscuta is an example of:
Correct answer: A. Ectoparasitism
- A. Ectoparasitism
- B. Brood parasitism
- C. Predation
- D. Endoparasitism
Explanation
Cuscuta is a total stem parasite which is a good example of ectoparasitism. It is commonly found growing on hedge plants. It has lost chlorophyll and leaves in the course of evolution. It attaches and wraps itself around the stem of the host plant and produces haustoria that gets inserted into the vascular system of the host. The parasitic plant sucks all the nutrients from the host plant with the help of haustoria. Cuscuta is known to receive even the flower inducing hormone or florigen from the host.
Last updated
About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
Practise Man and His Environment
382 free Man and His Environment MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Conversion of ammonium into nitrates is:
In a forest, there are a lot of plants; trees, shrubs, and herbs. What will the Palm trees face if they grow in the same forest?
The animals that feed on organic debris from decomposing plants and animals are called:
Process ensuring the survival of species over long periods of time, even though individual members of the species die.
The position of an organism in a food chain of an ecosystem called: