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 the objectives in the biochemistry of the eye. After going by this section, you should be familiar with: a. Dynamic of vascular supply of eye; b. The cornea metabo
Define Bitot's Spots - micronutrient deficiencies? As the deficiency progresses, dirty white, foamy and raised spots are formed on the surface of the conjunctiva, generally on
The atomic number of argon is 18. Will argon tend to form bonds with other elements? Describe your answer. Argon will not tend to form bonds with other elements. With an atomi
Wat type of animal is tick and weevil?
Q. Why is the digestive system of these animals called incomplete? Incomplete digestive system is in that which the digestive cavity has only one opening.
Proteins of Animal Origin - Egg Eggs: Roughly, the chicken egg consists of 11% shell, 31% yolk and 58% white. Liquid whole egg consists of 65% white and 35% yolk. The primary
Explain the Management of Middle - Third Perforation Same to coronal one-third perforation, except defects located more deeper from the access cavity. For successfully
Q. Vitamins and minerals requirement in diabetes? The recommendation of vitamins and minerals is the same as for general population. However, lower levels of magnesium are ass
If experiments do not support the hypothesis, the hypothesis is always rejected or wrong. True or False?
Rifaximin (Xifaxan) An anon-absorbed oral antibiotic, was about as effective as ciprofloxacin for treatment of travelers' diarrhea, mostly caused by E. coli. It is not effecti
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