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 are the main manifestations of leishmaniasis? There are two major forms of leishmaniasis: cutaneous leishmaniasis and visceral leishmaniasis (also called as kala-azar). Th
In the scientific competition against fixism what are the main arguments that favor evolutionism? The major arguments in favor of evolutionism are paleontological, from the stu
Define Methods of Estimation of Ascorbic Acid (Vitamin C)? Ascorbic acid is also known as vitamin C which is a water soluble vitamin. As you already know, vitamins are a group
What is the Host Factors of implants These factors are very important and it is essential for the clinician to keep these in mind during the diagnosis and treatment planning st
Need an essay in regard to an experiment that I did. Essay Assignment: Experimental Design Now that you have completed several hands-on lab experiments, take a little time to con
Despite having a great biodiversity why is the Amazon Rainforest under risk of desertification? The natural soil of the Amazon Rainforest is not very fertile but it is enriched
Explain Matching energy intake to energy expenditure? To be in energy balance, an athlete needs to consume about the same number of calories that he or she expends on a daily
Cryptorchidism Cryptorchidism or incomplete descent of testis or retention of testis in the abdominal cavity occurs in all domestic species but is seen most commonly in stalli
Updating by Deletion DELETE FROM ENROLMENT WHERE StudentId = SID ('S4'); As you can see, this differs from Example by the addition of the noise word FROM. The expression SI
Q What are the three major types of nitrogen wastes excreted by living beings? The main nitrogen wastes excreted by living beings are ammonia, urea and uric acid. Living beings
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