List of top Questions asked in GATE EY

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

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?

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?

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 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?

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

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

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

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?

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?

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

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

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?

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

A researcher estimates the relationship between reproductive success (𝑁, number of offspring) and horn length (𝐻, in cm) in a wild goat as 𝑁 = 40 − 2.2𝐻 + 0.04𝐻 2 Horn length typically varies from 10 cm to 50 cm in this species. Which one of the following graphs correctly represents this relationship?

In a polygynous hummingbird species, males defend and monopolize nectar–rich plants (resource). Females visit these plants for nectar and the defending male will have access to all visiting females for mating. Under which scenario is polygyny expected to be the highest?

The table below lists different insects and taxonomic orders. Choose the option that matches the animal to its correct taxonomic order. Animal Taxonomic order P) Moths i) Hemiptera Q) True bugs ii) Orthoptera R) Crickets iii) Coleoptera S) Beetles iv) Lepidoptera v) Diptera

A researcher fitted a function to data on how foraging rate (F, number of items consumed per 10 minutes) of a shorebird varied with its group size (G, number of individuals) and obtained the following equation:𝑙𝑜𝑔𝑒𝐹 = 3 − 0.2 × 𝑙𝑜𝑔𝑒G.According to this equation, the foraging rate (F) of a solitary forager is_________________ items per 10 minutes.(Rounded off to the nearest integer)

Islands I, II, and III lie off a mainland coast. Which one of the following statements about species richness is consistent with the theory of island biogeography?

In haplodiploid organisms, males are haploid and females are diploid. Consider the relatedness diagram shown below. Female A has a full-sister, Y, who has a daughter, B. The relatedness between A and B is ___________. (Rounded off to three decimal places)

A lake has 20 blue male, 30 red male, 60 blue female and 80 red female fish. A researcher catches one individual at random from the lake. If the caught fish is blue, the probability that it is female is ____________. (Rounded off to two decimal places)

You have a biased coin with the probability of getting a head being 0.6. The probability of getting at least 1 head in 3 tosses is ____. (Rounded off to three decimal places)