In primary ecological succession on bare rocks, which species typically serve as the pioneer species?

Exploring molecular, genetic and species-level diversity for products of economic importance is called:

Match List I with List II: List I: A. Decomposition B. Detritus C. Mineralisation D. Humification List II: I. Accumulation of dark coloured amorphous colloidal substance II. Release of inorganic nutrients by the activity of microbes in soil III. Breaking down of complex organic matter into inorganic substances IV. Dead remains of plants and animals including fecal matter Choose the correct answer from the options given below:

Which of the following statements are correct? A. The Amazon rainforest being cut and cleared for cultivation of soybeans is an example of habitat loss. B. Steller's sea cow and passenger pigeon became extinct due to over-exploitation by humans. C. The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake. D. Water hyacinth is an invasive species. E. When a species becomes extinct, the plant and animal species associated with it are not affected. Choose the correct answer from the options given below:

Match List I with List II: List I: A. Productivity B. Net primary productivity C. Gross primary productivity D. Secondary productivity List II: I. Gross primary productivity minus respiration losses II. Rate of formation of new organic matter by consumers III. Rate of biomass production IV. Rate of production of organic matter during photosynthesis Choose the correct answer from the options given below:

Which of the following is NOT an example of symbiosis?

Animals that can tolerate only a narrow range of salinity are referred to as:

In a systematic ecological survey of lepidopterans in a moist deciduous forest, a total of 197 species were recorded with 6814 individuals. According to the typical relative abundance distribution pattern in natural communities, which one of the statements below is correct?

Which population interaction sign (+ / -) occurs in both parasitism and predation?