Question

Study the following and choose the correct statements:
• [I.] The anti-cancer drug vinblastin is obtained from the plant Digitalis
• [II.] The concept of biodiversity hot spots was proposed by Paul Ehrlich
• [III.] In protostomes cleavages are spiral and determinate
• [IV.] As the species share the same ecological niche, it is described as ecological unit

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

Hint:

Vinblastine \(\rightarrow\) Catharanthus Hotspot concept \(\rightarrow\) Norman Myers Protostomes \(\rightarrow\) Spiral, determinate cleavage

Answer 1

The Correct Option is A

Step 1: Statement I Vinblastine is obtained from \[ \textit{Catharanthus roseus} \] and not from Digitalis. Hence Statement I is false.

Step 2: Statement II The biodiversity hotspot concept was proposed by \[ \text{Norman Myers} \] not Paul Ehrlich. Hence Statement II is false.

Step 3: Statement III Protostomes show: \[ \text{Spiral cleavage + Determinate cleavage} \] Hence Statement III is true.

Step 4: Statement IV A community of interacting species occupying ecological niches forms an ecological unit. Hence Statement IV is true. Therefore correct statements are: \[ \boxed{\text{III and IV}} \] Hence option (A) is correct.