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A simple osmometer
Remove the bottom from a small glass bottle about 2.5 cm in diameter. Fit a one-hole stopper tightly into the bottom and put a 50 cm length of glass tubing or a length of two soda straws by the hole.
Place a piece of cellophane or parchment paper over the other end of the bottle and fasten it securely by winding with various turns of string or strong thread. Fill the bottle with a very concentrated sugar solution and change the one-hole stopper being sure that no air bubbles remain inside the bottle. Clamp the osmometer in a glass of water and permit to stand a few hours.
which bone forms the non-moving muscle attachment in the hip joint
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Echinodermata - Regeneration in Invertebrates Asteroids (starfishes), ophiuroids (brittle stars) and crinoids (sea lilies) can reproduce their lost arms and although parts of
Define on which severity of heat treatment for pasteurization depends? The severity of heat treatment for pasteurization depends on: 1. Heat resistance of target microorgan
In the evolution of whales, there is evidence that whales and hippo form a monophyletic group. Show all the evidence that supports the close relationship between whales and hippos
what is the effect of insuline in body ?
How plants solve the problem of transporting substances throughout their tissues? In the bryophytes the substance transport is done by the diffusion. In the tracheophytes (pter
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
Why is there a concern on waste water?
A species has a diploid chromosome number of 56. Is it true or false that of the 28 chromosomes in an ovum, 14 are always paternal? Ignore the effects of crossing over. Justify you
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