Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Pheromones Serving Functions Other than Reproduction
Besides sexual responses as described above pheromones mediate several other types of behaviour. Alarm pheromones have been found in termites and bees. The termite soldiers liberate alarm pheromones attracting (communicating alarm signals) the aggressive workers that participate in attacking the intrusive individuals. Trait pheromones secreted by insects help social integrity during migration of colonies by orienting along an invisible chemical trail that has been laid out by one or more conspecific insects. Both aerial land terrestrial trails are possible. Some species of ants and termites deploy trait pheromones in the recruitment of workers to food sources. Aggregate pheromones make it possible for both sexes to aggregate.
They are produced by members of both sexes. Pheromone-mediated aggregation helps to aggregate insects for feeding, protection, reproduction etc. A pheromone, 2-methoxy-5- ethylaphenol is produced from faeces of the migratory locust, Locusta migratoria migratorioides. The pheromone causes the young hoppers to aggregate and is also associated with the induction of morphological and physiological changes that result in the transformation of the hoppers to the migratory phase. In cockroaches also, the pheromones released from various surfaces of the body and from the faeces cause aggregation. In the protozoan Dictyostelium discoideum (amoebae, also known as cellular slime molds) the amoebae release pulses of a pheromone, which has been identified as cyclic 3'-5'AMP resulting in the aggregation.
What organic molecules make up the cell membrane?
Neuropsychological assessmnet of older children In the recent years, the field of child neuropsychology has undergone tremendous growth. There has been a burgeoning interest in
Which of the following patients will likely experience difficulty in maintaining lipoprotein synthesis resulting in elevated LDL levels? A physician is explaining to a group of med
Explain Polio Adults who have not previously been immunized against polio should receive a primary series of inactivated polio vaccine (IPV) if traveling to areas where polio i
Biota of Pelagic Zone Pelagic region constitutes 90 per cent of the total ocean surface and is less rich in species and numbers of organisms than the two regions discussed bef
Pyridoxal phoshphate Pyridoxal phosphate is derived from pyridoxine (vitamin B6) and is involved in amino acid metabolism. The other two compounds, pyridoxal and
Heifers As efficient reproductive performance is essential for economic livestock production, the female calves must grow rapidly to attain sexual maturity, ovulate and be mated b
Q. What are the main opportunistic diseases that can affect AIDS patients? Among the opportunistic diseases that affect HIV contaminated people during the AIDS stage some are:
Explain the effect of Deficiency of pyridoxine? A deficiency of vitamin B6 alone is uncommon because it usually occurs in association with a deficit in other B-complex vitamin
1. The Combination Of Rapid Industrial Growth, Lack Of Regulations, Inadequate Supervision Of Safety Measures By The Authorities And Lack Of Sufficient Opportunities For The L
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd