1
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Read the following statements

I. Species diversity decreases as we move away from the equator towards the poles.

II. Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.

III. Lantana and Eichhornia are invasive weed in India.

IV. The historic convention on biological diversity was held in 1992.

Choose the option containing correct statements.

A
I and II
B
I, II and IV
C
I, III and IV
D
II, III and IV
2
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Characteristics of cancer are

A
All viruses are oncogenic
B
All tumours are cancers
C
Cancerous cells show property of contact inhibition
D
Cancer cells show metastasis
3
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Select the incorrect match.

I. Sedimentary nutrient cycle-Nitrogen cycle

II. Pioneer species - Lichens

III. Secondary succession - Burned forests

IV. Pyramid of biomass in sea - Upright

A
I and IV
B
I and III
C
II and III
D
II and IV
4
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Apical dominance is caused by

A
auxin
B
ethylene
C
gibberellin
D
cytokinin
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