A plant produces flowers that are open through the day and the night. An experimenter places pollen on the stigmas of freshly opened flowers and covers them after pollination to prevent natural pollinators from having access to the flowers. When experimental pollination was carried out during the day, 40% of the flowers yielded fruit. When experimental pollination was carried out during the night, 80% of the flowers yielded fruit. However, when flowers were  kept  open  to  natural  pollination  during  the  day  (covered  at  night),  35%  of  flowers  produced  fruit.  20%  of flowers exposed to natural pollination during the night (covered during the day) produced fruit. Which of the following statements is NOT a plausible explanation of these results ?

TLS Online TPP Program

#Question id: 11977

#Unit 7. System Physiology – Animal

Which of the following would be associated with parallel changes in aldosterone and cortisol secretion?

TLS Online TPP Program

#Question id: 11978

#Unit 10. Ecological Principles

Which of the following statements about the ocean pelagic biome is true?

TLS Online TPP Program

#Question id: 11979

#Unit 10. Ecological Principles

A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?

TLS Online TPP Program

#Question id: 11980

#Unit 10. Ecological Principles

 A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?

TLS Online TPP Program

#Question id: 11981

#Unit 10. Ecological Principles

A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other.  Which of  the  following  would  be  an  ultimate  cause  of  the  male  cats? response  to  the  female?  s urinating behaviour?

TLS Online TPP Program

#Question id: 11982

#Unit 10. Ecological Principles

Which of the following is a behavioral pattern that results from a proximate cause?