List of practice Questions

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 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?

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?

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

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 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?

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

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

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

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?

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?

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)

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

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

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 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?

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?