Choose the correct match

Bladderwert, sundew, venus flytrap:

1. Nepanthese, Dionea, Drosera

2. Nepanthese, Utricularia, Vanda

3. Utricularia, Drosera, Dionea

4. Dionea, Trapa, Vanda

Subtopic:  Population Interactions: Predation |
AIPMT - 2002
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NEET 2023 - Target Batch - Aryan Raj Singh
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A keystone species is:

1. A common species that has plenty of biomass, yet has a fairly low impact on the community's organisation.
2. A rare species that has minimal impact on the biomass and on other species in the community.
3. A dominant species that constitutes a large proportion of the biomass and which affects many other species.
4. A species that makes up only a small proportion of the total biomass of a community yet has a huge impact on the community's organisation and survival. 

Subtopic:  Population Interactions: Predation |
 71%
AIPMT - 2004
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Animals have the innate ability to escape from predation. Examples of the same are given below. Select the incorrect example:
 

1. Colour change in chameleon
2. Poison fangs in snakes
3. Melanism in moths
4. Enlargement of body size by swallowing air in puffer fish

Subtopic:  Population Interactions: Predation |
AIPMT - 2005
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