List of top Questions asked in GATE EY- 2023

A butterfly species inhabits four types of patchy landscapes (P, Q, R, S). Grey shapes represent occupied habitat and white shapes are unoccupied. Arrows represent the occurrence and directions of possible dispersal.Which one or more of the options is/are likely to be correct?

In the phylogenetic trees shown, the tips represent different species of geckos (labeled A to E) and the areas to which they belong. Which one of these is most consistent with the hypothesis that the geckos colonized the Western Ghats from Northeast India through the Eastern Ghats?

Which one or more of the following is/are developmental feature(s) of hatchlings of an altricial bird species?

Which one or more of the following represent(s) benefits of Batesian mimicry to the mimic?

A research team studies the probability of crop damage by wild boar in crop fields. For each crop field sampled, they record 1 if damage was observed, and 0 if damage was not observed. Which one of the following distributions is most appropriate to analyse the probability of crop damage?

Which one of the following ecological processes best explains the observation that seedling establishment increases with distance from the parent tree in a forest?

To test whether body size differs between two populations of a field mouse species, a researcher measured 100 individuals in each population and calculated the statistic 𝑋̅1-𝑋̅2/Sp√1/n1+1/n2 where 𝑋̅1and 𝑋̅2 are the mean body sizes of the two populations, respectively,Sp is the pooled standard deviation, and n1 and n2 are the sample sizes for the two populations, respectively.This statistic is used in the

Which one of the following ranges correctly represents the percentage of energy that is transferred from a lower to the next higher trophic level in most terrestrial systems?

Which one of the following options describes the difference between abiotic resources and abiotic conditions?

You are a deep–sea organism and your potential mates are several hundreds of kilometers away from you. Which one of the following kinds of mating signals is most likely to help them locate you?

Which one of the following options represents the correct order with respect to levels of organization? B – biomes; E – ecosystems; P – populations; I – individuals; C – communities

In the early 20th century, which one of these scientists made fundamental contributions to both the fields of evolution and statistics?

The figure depicts how body temperature changes for two species (L and M) as a function of ambient temperature.Which one of the following statements about how L and M regulate temperature is correct?

Which one or more of the following processes contribute(s) substantially to increased mean global temperatures?

Depending on soil nutrient availability, which one or more of the following interaction(s) can occur between soil mycorrhizal fungi and plants?

The IUCN Red List is based on a set of criteria to evaluate species vulnerability to extinction. Which one or more of the options is/are used as criteria?

Which one or more of the following is/are characteristic of r-selected animals?

Which one of the following endangered species has been the subject of a reintroduction plan in India?

Compared with bony fish, many shark species show steeper population declines in response to heavy fishing pressure. Which one of the following options explains this?

Which one or more of the following options describe(s) how ferns differ from angiosperms and gymnosperms?

The increase in mean global temperature since the industrial revolution falls in the range of

Which one of the following options represents the correct order of decreasing average net primary productivity (g / m2 / year) in natural ecosystems?

Whales and dolphins are hypothesized to have evolved along the northern shore of the Tethys Sea, prior to the Indian plate’s collision with the Eurasian plate. To which one of the following animals are these aquatic mammals most closely related?

Two species of birds, A and B, are found together in region X. Only species A is present in region Y. Both species produce species-specific alarm calls in response to a predator P. A researcher conducts experiments where she plays recorded calls of both species to species A in regions X and Y. The response of species A to the recorded calls are summarized in the table below. . Call stimulus Response in region X Response in region Y Alarm call of species A Species A flies for cover Species A flies for cover Alarm call of species B Species A flies for cover Species A does not respond Based on the results, the most appropriate inference is that