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Planting bacteria gardens
When the bacteria gardens have cooled place them out on the table but do not increase the glass covers unless you are ready to plant them. Toothpicks or small wood splints make superior garden tools for planting bacteria gardens. Place 30 or 40 toothpicks in a covered can and bake them in an oven for an hour. This will execute most of the bacteria. When you remove one from the can use tweezers and only touch single toothpick. Secure bacteria from as many sources as possible. The following will be suggested: (a) a piece of decaying or rotten fruit; (b) a decayed tooth; (c) dirty money; (d) dirt from under finger nails.
Gum Tragacanth Gum tragacanth, the exudation of Astragalus species, is defined as the "dried gummy exudate" obtained from Astragalus gummifer Labillardiere. Gum tragacanth is
Explain what is Inversion ? Inversion is another way in which genetic recombination can occur, as seen below. In this case, the change occurs within a chromosome, rather than b
Plastids The term plastid first used by Haeckel (1865). These are present in plants and few protists (Euglena). On the basis of function plastids are of three types
Density of Water in Relation to Temperature On cooling, water molecules come closer which makes water dense. It is most dense at 4°C (Figure shown below) but it is still a liqu
What are the major terrestrial biomes? The main terrestrial biomes are: tundra, taigas (or boreal forest), tropical forests, temperate forests, grasslands and deserts.
what are protein? What is the constituential uni. Of protein? Briefly explain the various forms of protein?
history of zoology
Hom o sapiens sapiens (MODER N MAN) - Developed from Cro-Magnon about 10,000 years ago after last glacial period in the regions of Caspian and Mediterranean seas.
Q. What is the rule for the pairing of nitrogen-containing bases in the DNA molecule? And in the RNA? Is this the last question appropriate? The rule for the pairing of nitroge
Q. Briefly explain about semantides? The information carrying molecules in plants are called semantides, and they have been recognised to be 3 kinds; deoxyribonucleic acid or D
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