Countercurrent flow, Biology

Assignment Help:

Countercurrent flow is the arrangement by which fish get oxygen from the water which flows by the help of their gills. The water flows across the respiratory surface of the gill in one direction while the blood flows in the other direction through the blood vessels on the other side of surface.


Related Discussions:- Countercurrent flow

Give brief description about the generalised seizures, Generalised Seizures...

Generalised Seizures Generalised seizures are bilaterally symmetrical without focal onset. One subtype, the grand mal attack, is characterised by loss of consciousness and by s

Nucleus, NUCLEUS First described and christened by Robert brown 1831, a...

NUCLEUS First described and christened by Robert brown 1831, a nucleus is the largest and most important organelle of eukaryotic cells. It is membrane bound and generally locat

Kingdoms, The organisms that live in hostile environments that cannot suppo...

The organisms that live in hostile environments that cannot support other forms of life are members of what kingdom?

Epiboly - mechanism of gastrulation, EPIBOLY - The epibolic movement...

EPIBOLY - The epibolic movements occur only in the prospective ectodermal blastomeres. In the blastula of frog, migration and rearrangement of microceres over megameres i

Explain treatment of latent tb infection, Treatment of latent tb infection ...

Treatment of latent tb infection The risk of developing clinical tuberculosis is greatest in patients with latent TB who are also infected with HIV or are receiving immunosuppr

How did the industrial revolution in england, How did the industrial revolu...

How did the industrial revolution in England offer an example of natural selection? One of the classic instances of natural selection is regarding the moths of industrial zones

Cleft grafting, Cleft grafting  The stem of the stock is cut across....

Cleft grafting  The stem of the stock is cut across. A 'V' shaped insertion is made at the end of the stock. The scion is cut in shape. The scion is inserted into the 'V'

Define role of iron in controlling gene expression, Define Role of Iron in ...

Define Role of Iron in Controlling Gene Expression? Iron metabolism is regulated by a complex co-ordinate mechanism. Recent evidence supports specific past-transcriptional mech

What are autotrophic beings? what are heterotrophic beings, What are autotr...

What are autotrophic beings? What are heterotrophic beings? The Autotrophic beings are those that can produce their own food that is that make organic material from inorganic c

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd