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Compared to platyhelminthes which physiological problem have the cylindrical body of nematodes brought? How was that problem solved?
The cylindrical shape of nematodes made impossible the respiration exclusively by simple diffusion among cells since there are tissues far from the exterior. This problem was solved by the presence of an inner cavity in the body filled with fluid, the pseudocoelom. The pseudocoelom has the function of distributing gases and nutrients to the body and to collect residuals, besides serving as a hydrostatic base to keep the worm shape.
Q. What are the main phases and clinical manifestations of schistosomiasis? The Schistosomiasis has acute and chronic phases and Days after the infection the cercarial dermatit
Deciduous Senescence - Senescence Only the leaves senesce as in many trees. The senescence of leaves, or abscission occurs when at the base of a leaf a layer of cells is laid
Subphylum Mandibulata Most of them have three pairs of walking legs, mandibles, compound eyes, antennas, some with wings. There are four classes. Crustacea - aquatic with
Phylum-Bacteria (Eubacteria) Eubacteria,th e true bacteria, are extremely small and they exist in vast numbers virtually everywhere on earth. They range from the upper atmosphe
Q. Can you explain Salmonellosis Salmonellosis is a common food bome disease all over the world. There are approximately 1600 different strains (sero types) of Salmonell
Breeding of crops with high levels of minerals, vitamins and proteins is called: 1. Somatic hybridisation 2. Biofortification 3. Biomagnification 4. Micropropagation
H e a t stroke It is also known as sun stroke or hyperthermia and results in excessive rise of body temperature and absence of sweating. E t i o l og
When do you use the term 2' carbon and when do you use 2 carbons on a molecular structure? I need examples please!
P ARTURITIO N - Gestation period is of 280 days (in rabbit 28 days). Parturition is the expelling of fully mature young ones from the mother's uterus. Oxytocin stimulates
what are the role of microbes in human welfare
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