NEET UG 2010 — Organisms and Populations

Study the four statements (1-4) given below and select the two correct ones out of them. (1) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers (2) Predator star fish Pisaster helps in maintaining species diversity of some invertebrates (3) Predators ultimately lead to the extinction of prey species (4) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders The two correct statements are

Which one of the following is most appropriately defined?

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively?  

Which one of the following is one of the characteristics of a biological community?