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Water loss during excretion
In terrestrial animals body water is also lost during excretion of nitrogenous wastes. A number of physiological adaptations have taken place to minimise the loss of water associated with this phenomena. You have learnt in the previous Unit that among terrestrial invertebrates, insects are highly effective in conserving water.
In terrestrial vertebrates, kidney is the chief organ of osmoregulation and excretion. The loop of Henle is the specialised part of the nephron which produces hyperosmotic urine. Amphibians and reptiles which are unable to produce a hyperosmotic urine, as an adaptive consequence, cease urine production entirely during the period of osmotic stress.
Explain some Characteristic Features of Mucor? 1. Stolons characteristics of Rhizopus are absent in Mucor. The aerial mycelium in Mucor consists of branched hyphae, which grow
What are the Amylase Inhibitors? Inhibitors of the enzyme a-amylase are found in wheat, rye, beans, mango, legumes, potatoes, sorghum (jowar) and oats. Most amylase inhibitors
Vegetative Development - Growth It is quantitative and irreversible change. It reflects an increase in size and volume of an organism. For example, the change in the size of a
Explain briefly about Foams Consider the following example. Take some liquid in a glass and agitate or shake it vigorously. What do you observe at the top of the liquid. Yes,
Q. Wound Botulism? It is the rarest form of botulism. The illness results when C. botulinum by itself or with other microorganisms infects a wound and produces toxins, which re
Neurulation in Amphibians The first step in the neurulation process is the flattening and thickening of dorsal ectoderm to form neural plate. The plate of cells are different
trematodes parasitic mode of feeding
Mitochondria are the organelles in which the most significant part of the cellular respiration happens: the ATP production.
Q. How different are the concepts of neoplasia, tumor and cancer? Not all tumor is neoplastic and not every neoplasia creates tumor. The Tumor is the generic name given to the
Describe the Dinosaurs in multimedia Tutorials? Travel back to a time when dinosaurs ruled the earth. Learn about the different types of dinosaurs and practice building your ow
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