Question

Study the following and choose the correct statements.

\[ \begin{aligned} \text{I.} \;& \text{Biodiversity is greater in tropics} \\ \text{II.} \;& \text{Digitalin is an anti-cancer drug obtained from the plant } \textit{Vinca rosea} \\ \text{III.} \;& \text{Invasion of alien species is a threat to the local species} \\ \text{IV.} \;& \text{Sacred groves are a type of ex-situ conservation} \end{aligned} \]
(only = only)

• A. I, IV
• B. II, III
• C. II, IV
• D. I, III

Hint:

Remember: \[ \boxed{ \begin{aligned} &\textit{Vinca rosea} \rightarrow \text{Vincristine, Vinblastine (anti-cancer)} &\text{Sacred groves} \rightarrow \text{In-situ conservation} &\text{Alien species} \rightarrow \text{Threat to biodiversity} \end{aligned} } \]

Answer 1

The Correct Option is D

Step 1: Examine each statement. \[ \begin{aligned} I. &\text{True }(\text{tropical regions possess maximum biodiversity}) II. &\text{False }(\textit{Vinca rosea}\text{ yields vincristine/vinblastine, not digitalin}) III. &\text{True }(\text{Alien invasive species threaten native species}) IV. &\text{False }(\text{Sacred groves are an example of \emph{in-situ} conservation}) \end{aligned} \]

Step 2: Identify the correct statements. The correct statements are \[ \boxed{I and III.} \]

Step 3: Choose the correct option. Hence, \[ \boxed{(D)} \] is the correct answer.