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.
You have identified a protein in a cell that you know that comes from the human body. With respect to that protein you have also determined that it allows sodium ions to go through
in what part of the human body aschelminthes found?
The diet prescription The diet prescription designates the type, amount and frequency of feeding based on an individual's disease process and disease management goals. The dis
Q. What are the three major renal processes that combined produce urine? Urine is made by the occurrence of three processes in the nephron that are tubular resorption, glomerul
Define The Names of Some Immemorial Plants? From the time immemorial plants have been known by some name, they are common, vernacular or local names given by different persons.
Explain why Meat products causes diabetics Diabetics can have meat products in case they eat non-vegetarian food. Baking, roasting or grilling is preferable to frying. Patient
What is Biomaterial Biomaterial is defined, in the broader sense, as any pharmacologically inert material that is capable of interacting with a living organism without causing
How is HIV transmitted? What is the disease caused by this virus? HIV (human immunodeficiency virus) is supposed to be transmitted by blood, semen, maternal milk and vaginal se
Explain the Role of Lipoprotein ? As discussed in the previous section, serum concentrations of Lp(a) are elevated in South Asians irrespective of their migrant status. Several
Explain about it
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