2017 source guide · Biology

NEET 2017 Biology Ecology Questions

Use this page to connect the official 2017 paper with current Biology practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 318 verified questions →Check official NTA archive ↗

What to master

populations, communities, ecosystems, biodiversity and conservation.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 2/5

David Tilman and colleagues performed long-term ecosystem experiments using outdoor plots in which the number of species was deliberately manipulated. Their principal finding was:

A. plots with fewer species produced more biomass yet fluctuated less between years
B. species richness had no measurable influence on productivity or stability
C. productivity rose with diversity, but year-to-year variation in biomass also rose
D. plots with greater species richness showed higher productivity and smaller year-to-year fluctuations in total biomass

Example 2 · difficulty 3/5

When a host fish species becomes extinct, the unique assemblage of parasites dependent on it likewise disappears; similarly, the loss of an obligately coevolved plant can doom its specialised pollinator. This category of biodiversity loss is called:

A. habitat fragmentation
B. over-exploitation
C. coextinction
D. adaptive radiation followed by extinction

Example 3 · difficulty 1/5

Which of the following pairs consists ONLY of ex-situ strategies for conserving biodiversity?

A. Tissue culture propagation and cryopreservation of gametes
B. Sacred groves and wildlife sanctuaries
C. National parks and biosphere reserves
D. Identifying biodiversity hotspots and legally protecting them

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Organisms and Populations →Ecosystem →Biodiversity and Conservation →

Frequently asked questions

Are these official NEET 2017 Biology Ecology PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2017 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.