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!
Ram Ventilation
Some fish do not use pumping action for gill ventilation. It has been known for long that large tunas cannot be kept alive in captivity unless they are put in circular tanks where they can swim continuously. The fish swim with their mouths partly open and there are no visible breathing movements. Water flows continuously over their gills. This is known as ram ventilation.
It is now known that many fish breathe by pumping at low speed and change to ram ventilation at high speed. In this case the work of breathing is transferred from the muscles of the opercular pump to the muscles of the body and tail. However, ram ventilation is more economical as far as energy consumption is concerned than opercular pumps at high rates required for fast swimming.
Q. What are the respective ploidies of zygote, gamete and somatic cells in a species with gametic meiosis? Adopting as pattern an "x" quantity of chromosomes for gametes, somat
Explain the Secretary Phase - Menstrual Cycle After ovulation, the lining of ovarian follicle is stimulated by LH to develop corpus luteum which produces progesterone. The endo
What is the distinction between interspecific competition and intraspecific competition? Interspecific competition takes place among organisms of the similar species. Intras
What is a Food Allergy (Hypersensitivity)? A food allergy or hypersensitivity is an abnormal response to a food by our immune system. As illustrated in Figure, this non-toxic a
What is the radula? What is the function of this organ? Some molluscs have a tongue-like structure with harsh saliences similar to small teeth. This structure is called radula
Primary Production - Ecosystem Energy accumulated by plants during photosynthesis is called production or more specifically primary production. It is the first and the basic f
What is the main evolutionary innovation presented by nematodes? What is the advantage of that innovation? The short evolutionary innovation of nematodes is the complete digest
How old is the earth? It is believed that the earth is about 4.5 billion years old.
Respiratory Distress Syndrome: Respiratory distress in a newborn is a challenging problem. It accounts for significant morbidity and mortality. It occurs in 4 to 6 per c
(i) Genetic Bio- Diversity: All forms of life on earth contain genes. Genes are carrier of hereditary characteristic from one generation to another. " genetic diver
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