Q. Which of the following is NOT an example of phenotypic plasticity? A. Density-dependent swarming behavior in locusts B. Increase in DDT resistance in mosquitos C. Seasonal variation in plumage colouration in birds D. Temperature-dependent sex determination in turtles Ans: ...

Q. Natural populations often deviate from Hardy-Weinberg equilibrium. One possible reason for this is (A) no migration                                         (B) no selection (C) random mating                                      (D) small population sizes Ans: small population sizes

Q. Which of the following is NOT typically a characteristic of early successional pioneer plants relative to late successional plants in a tropical rain forest? (A) Higher shade tolerance                       (B) Smaller seed size (C) Smaller size at maturity                      (D) Wind ...

Q. In which of the following plants is the dominant stage of the life cycle haploid? (A) ...

Q. Copies of genes that arrive in a particular genome by horizontal gene transfer are known as (A) analogs               (B) homologs           (C) ohnologs           (D) xenologs Ans: xenologs

Q. In which of the following mating systems is sperm competition likely to evolve? A. Monoandry B. Monogamy C. Polyandry D. Polygyny Ans: Polyandry

Q. For a species, assuming a relatively short time scale and no evolution, increased interspecific competition will result in a (A) larger fundamental niche                    (B) larger realized niche (C) smaller fundamental niche                  (D) smaller realized niche Ans: smaller ...

Q. Which of the following can be used to test differences between mean tree heights in a tropical versus a temperate forest? A. Binomial test B. Linear regression C. Pearson’s correlation D. Student’s t-test Ans: Student’s t-test

Q. A plant species found in India produces flowers that are white, fragrant, and tubular. Which of the following is the most likely pollinating agent? (A) Hummingbirds                                      (B) Lorises (C) Moths                                                     (D) Wind ...

Q. A non-venomous, non-toxic species of snake is brightly coloured and closely resembles a venomous snake species in the same habitat. This is most likely a case of A. aggressive mimicry B. Batesian mimicry C. masquerade D. Müllerian mimicry Ans: Batesian mimicry

Q. Male frogs display to females by producing loud acoustic signals. The use of these signals by bats to locate frogs and prey upon them is an example of A. aposematism B. deception C. eavesdropping D. mimicry Ans: eavesdropping

Q. Forager bees communicate the distance of a food source using a waggle dance upon return to the hive. It is observed that the number of waggles of a dance increases linearly with the distance to the food source. This tells us that the A. number of waggles and distance to food source is ...