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.
What are the types of muscle tissues? What are the morphological features that differentiate those types? There are three kinds of muscle tissue: the skeletal striated muscle t
What is a species? A species is a set of living beings able to cross between themselves generating fertile offspring. This method though does not apply to individuals of ex
How do the sodium and potassium ions maintain the resting potential of the neuron? The plasma membrane of the neuron when at rest maintains an electric potential difference amo
Oxidation of succinate to fimarate: This reaction is catalyzed by succinate dehydrogenase and FAD' is needed as a cofactor. Malonate, structural of succinate, competitively
Pituitary The pituitary is also known as hypophysis. It is composed of two embryologically distinct tissue. The anterior pituitary or adenohypophysis is derived from the roof
State two ways in which cardiac muscle is microscopically similar to skeleton muscle.
What is the difference between macro and micronutrients? The categorization criterion of nutrients into macro and micronutrients has no relation to the size of the molecule. M
Define Nutritional Needs during Exercise? During Exercise: Addressing the nutritional needs during training is essential for optimal performance. The focus should be to:
Q. Moniliasis is one of the most common opportunistic diseases in AIDS. What is the etiological agent of moniliasis and what is the other name of the disease? Why is monilia also c
Q. What is the crossing over? And In which period of meiosis does this event occur? Crossing over is the eventual exchange of chromosomal fragments among homologous chromosomes
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