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!
Photoperiodism
Activity like breeding and migration in animals; flowering, seed germination in plants are regulated by the length of daily period of light and darkness. This behavioural phenomenon is known as photoperiodism. For example, plants such as radish, potatoes and spinach bloom when the light duration is more than 12 hours/day. Such plants are called long day plants. Cereal, tobacco, dahelia and many other plants bloom when light duration is less than 12 hrs/day. These are called short day plants. Such responses show that plants have built-in mechanisms for measuring the duration of illumination and darkness and hence flower in a specific seasons.
Similar photoperiodic responses are observed in animals. These may be diurnal, lunar or annual. Reproduction and migration in birds are such annual photoperiodic responses. From such responses it seems that distribution of some plants and animals may be restricted because the necessary photoperiodic stimulus is available only at certain latitudes.
Define General procedure of titration - Nutritional Biochemistry? In general a titration requires that we add precise amounts of the known titrant to the unknown analyte or ti
Spermiogenesis - Spermatogenesis At the end of the meiosis the spermatids appear as simple spherical cells with a centrally located nucleus. Their differentiation into sperm r
Species diversity An important attribute of a community is its species diversity. The diversity is calculated both by the number of species (richness) and the relative abundanc
Q. What are the morphological, chemical and functional similarities and differences between peroxisomes and lysosomes? Similarities: Peroxisomes and lysosomes are small membran
Hazard identification We start the process of risk assessment by first identifying the hazard. The goal of hazard identification is to identification potential adverse hea
Define Sample Titration - estimation of vitamin c in a solution? Take the given unknown solution provided to you in a 100 ml volumetric flask. Dilute the sample ascorbic acid s
Cholesterol can be gained either from the diet or it can be synthesized de novo, mainly in the liver. Cholesterol is transported round the body in lipoprotein particles. The rate
Determine the term - Angiomas Angiomas are congenital collections of abnormal vessels that divert the normal flow of blood. These capillaries, venous, or arteriovenous (A-V) ma
Mammals - Regeneration in Vertebrates Mammals are not capable of regenerating limb or tails. However, there are a few exceptions where lost tissues are regenerated. The annual
Effects on Health - Consequences of Air Pollution Since the air pollutants are inhaled they attack various parts of the respiratory system on their route to air sacs. Once the
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