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.
Beginning with the entry of fatty acid into target cells, describe in detail how inactivation of carnitine can lead to a high level of fatty acids in the blood.
Aortic Valve Replacement with Replacement of Aortic Root : When there is aneurysm of ascending aorta with aortic regurgitation, aortic root replacement is done. This
Q. Spontaneous deamination of cytosine: 1. Deamination of cytosine is common and results in conversion of cytosine to uracil 2. can be repaired by excision repair process (i)
The vertebral bodies are much larger in the lower back than the neck. What is the functional significance of this structural difference?
Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac
Determine Guidelines to Lower Risk and Wise Use of Drugs? There can be no two views regarding the act that the management of many diseases require drug therapy. However, they m
classification of plan''s tissue
Describe the factors that are involved in the regulation of respiration in a child who decides to hold his/her breath for as long as possible.
Achondroplasia is an autosomal dominant disorder associated with a gene on chromosome 4. Sickle cell anemia is due to a gene on chromosome 11. A man and a woman with achondroplasia
What is the function of the antidiuretic hormone? Where is it made and which are the stimuli that enhance or decrease its secretion? The antidiuretic hormone is secreted by 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