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Excretion in Protozoans
Excretion of metabolic wastes is dope almost exclusively by diffusion. All protozoans are ammonotelic i.e., the end product of their nitrogen metabolism is ammonia, which is readily diffused in the surrounding medium.
Figure: a) Parumecium with cytopharynx, food and contractile vacuoles and nuclei b) Enlarged section of a contractile vacuole in Paramecium which collects water and expels it outside, performing osmoregulatory functions
Define the term- brain circuitry underlying addiction By unraveling brain circuitry underlying addiction, scientists have identified new targets for therapies which might quell
What functions of the smooth ER and rough ER are similar?
It involves the standardization of copper sulphate solution. This is same as done in the previous activity. 1) Pipette accurately 5 ml of Solution A and Solution B in conical f
Q. Define Mushroom Poisoning? Mushroom poisoning is caused by the consumption of raw or cooked fruiting bodies (mushrooms, toadstools) of a number of species of higher fungl.
Q. Why is it significant for chromosomes to be condensed during mitosis and decondensed during interphase? During mitosis the major problem to be solved is the correct separati
Ventricular Arrhythmias : These include premature ventricular contractions (PVC), ventricular tachycardia (VT) and ventricular fibrillation (VT). At times they may be respon
How do the repairing enzymes of the genetic system act? There are enzymes inside the cells that detect errors or alterations in DNA molecules and begin a repair of those errors
Tall (T) plants are dominant and short (t) plants are recessive. Two heterozygous tall plants are crossed. What percentage of the offspring will be tall?
COPUL A TIO N - Followed with the help of penis. Sperms are ejaculated deep in vagina. Polyestrous i.e. can capulate any time thorughout the year.
Computed Tomograpy Scan Developments in cross-sectional imaging techniques such as spiral tomography and reformatted computerized tomograms have become increasingly popular in
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