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Those organisms which are composed of more than one cell , having different and special functions are called multicellular organisms.
Trophallaxis is the transfer of food or other fluids among members of a community through mouth-to-mouth or anus-to-mouth feeding.
The nuptial flight is the mating flight of some insects, most notably social bees and ants.During the flight females might mate with several males. Following mating the females land and, in the case of ants, chew off their own wings. The newly mated female then attempts to start a new colony by findRead more
Heredity is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
The types of hybridization are as follows: 1)Intra-specific hybridization 2)Inter-specific hybridization 3)Intragenic hybridization 4)Intergenic hybridization (v) Introgressive hybridization
Swarming is the natural method of reproduction of the honey bee colonies. In places where bee hive colonization is by the collection of natural swarms, no swarm control is practiced and swarms are valued then there is an inadvertent human selection for the development of smarmy bees. The advantage oRead more
The phenomenon of the result of interference (i.e., when waves are superimposed, they may reinforce or cancel each other out) and is most pronounced when the wavelength of the radiation is comparable to the linear dimensions of the obstacle is called diffraction of sound. Diffraction takes place witRead more
The effects of population increase on health are as follows: i)Gradual decrease on the crop production area, which might lead to food crisis. ii) Increased risk of unbalanced population management. iii) Lack of quality health services. iv)Arise of energy crisis, including electricity power supply, fRead more
The characteristics of wave motion are:- i) The disturbance travels through the medium. ii) When a disturbance is produced in a medium, the disturbed particles vibrate about their mean positions. iii)There is a regular phase difference between the particles of the medium. iv)As the disturbance reachRead more
D}facilitate All arrangements have been made to _facilitate_ the visit of students to the exhibition.