Assertion: Umbrella species are species selected for making conservation-related decisions.
Reason: Umbrella species has a disproportionately large effect on its natural environment relative to its abundance.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false

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

Identify the correct statements regarding the “EDGE” species:
I. They are the only survivor members of their genus or even higher taxon.
II. To increase their conservation many are designated as “focal” species
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II