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!
Gills - Respiratory Organs
Gills are the specialised respiratory organs of several aquatic animals. They are found in mollusis and as well in many crustaceans. Typically gills are filamentous structures richly supplied with blood. The gills found inside the body are considered to as internal gills whereas those found outside the body are referred to like external gills. Both are meant for respiration. In crustaceans, gills are generally related with appendages. Though, they may vary in form, origin and location. In crayfish, lobster, crab etc, the gills are filamentous, outgrowths from specific thoracic appendages, namely of epipodites and are enclosed in a chamber, and covered by carapace. These gills are generally ventilated by the paddle like movements of special appendages like the scaphognathite. Many aquatic insects have gills. These are usually abdominal or caudal and are called tracheal gills. These take place in nymphs of Odonata, Trichoptera and in larvae of some beetles. These gills are supplied with fine tracheae in place of blood capillaries. The tracheal gills of the nymphs of the dragonfly Aeshna lie in the rectum.
Trypanosomes – Flagellates The trypanosomes are among the serious pathogens that cause high mortality among human populations and domestic animals in Africa and also in South
Cost of Accidents Immediate Cost Immediate cost takes into account the loss of work, damages to equipment and facilities which have to repaired and restored or replaced
Q. How does the vegetal stratification of an ecosystem influence the biological diversity? The vegetal stratification of the ecosystem like the strata of the Amazon Rainforest,
summarise the comparative anatomy of the digestive system of the invertebrate and the vertebrate.
Explain An important strategy of group meetings An important strategy could be to conduct small group meetings for behavioural change encouraging full participation. The group
Phase Contrast Microscopy Phase contrast microscope has the resolving power similar to ordinary light microscope. However, it enables us to observe the cellular organelles in liv
Vascular Cambium The vascular cambium usually, if not always, has a dual origin within the primary tissues; from provascular strands, and from the "ground" meristem tissues be
why uracil is present in rna and thymine in dna?
Define Vitamin and Mineral requirements for preterm and low birth weight? Care to be taken for calcium and phosphorus intake in preterm infant. Due to inefficient sodium conser
A fish of genotype a/a; B/b is crossed to a fish whose genotype is A/a; B/b. What proportion of the progeny will be heterozygous for at least one of the genes? (Assume independent
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