Between community, diversity is known as:

1.	alpha diversity	2.	beta diversity
3.	gamma diversity	4.	delta diversity

Rice grown in Asia is protected from four main diseases by gene received from a single wild rice species that is:
1. Oryza nivara
2. Oryza indica
3. Oryza sativa
4. Oryza orientalis

Which of the following is a source of an antimalarial drug?

The bark of the yew tree, Taxus brevifolia, is source of:
1. an antileprosy drug
2. an anticancer drug
3. a broad spectrum antibiotic
4. an analgesic and sedative

A plant, that has invaded many forest lands in India and is also known as Spanish Flag or Red sage, is:

Which of the following characteristics does not make a species vulnerable to extinction?
1. a large body size
2. small population size and low reproductive rates
3. feeding at a lower trophic level in the food chain
4. fixed migratory route and habitat

Why is woodland caribou prone to extinction?
1. It has a low reproductive rate
2. It has fixed migratory route and habitat
3. It is localised and has a narrow range of distribution
4. It has a large body size

Why are blue whale and whooping crane prone to extinction?
1. It has a low reproductive rate
2. It has fixed migratory route and habitat
3. It is localised and has a narrow range of distribution
4. It has a large body size

A taxon is considered “critically endangered” if it faces a high risk of extinction in the wild in:

Identify the “vulnerable species in India”:
1. Berberis nilghiriensis and Sus salvanius
2. Bentickia nicobarica and Ailurus fulgens
3. Cupressus cashmeriana and Antilope cervicapra
4. Bentickia nicobarica and Antilope cervicapra