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.
Relation between Tissue and the implant material The biologic interaction between the tissue and the implant material at an interface may result in a variety of phenomena such
Q. What are the bacteria? Bacteria are unicellular and prokaryotic beings. Bacteria have simple organization they present an exterior cell wall, plasma membrane, circular DNA w
Responses Of Plants To Stress The internal chemical signals and environmental factors - the external signals which are perceived by special molecules present in the cell. In t
Soaking Soaking is an another inexpensive processing method, which does not require much technical know how, is commonly practiced for improving the palatability of chaffed cro
what is holozoic, holophytic, saprozoic nutrition
Birds and Mammals - Heart is 4 chambered. 2 auricles & 2 ventricles. Sinus venosus & truncus arteriosus absent. Arteriovenous heart. Double circulation i.e. pre
Explain Karyotype - Animal Taxonomy? In animals systematic, it is the karyotype, that is the chromosome number and structure which are used quite extensively either separately
Define the Interaction of Vitamin C with iron? Ascorbic acid powerfully enhances absorption of non- haem iron and reverses the inhibiting effect of tea and calcium phosphate. I
Name some Drugs to prvent tuberculosis Pyrazinamide can cause morbilliform rash, arthralgias and asymptomatic hyperuricemia, and blocks the hypouricemic action of allopurinol (
Uterine Torsion Incidences of uterine torsions in cattle and buffaloes are not common. However, they are very common in heavy breeds and buffaloes and animals in slopy terrain
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