HELP PLS The diagram below shows
the reaction of nitrogen with hydrogen to produce ammonia.
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Key
hydrogen atom
nitrogen atom
The reaction above takes place in a closed system. What is true about the mass of the nitrogen atoms in this reaction?
OA. The mass of the nitrogen atoms increases in the reactants and decreases in the products.
Ов. The mass of the nitrogen atoms in the reactants is greater than the mass of the nitrogen atoms in the products.
OC. The mass of the nitrogen atoms in the reactants equal to the mass of the nitrogen atoms in the products.
OD. The mass of the nitrogen atoms decreases in the reactants and increases in the product

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

What are the 3 types of artificial cloning

Drag each label to the correct location in the equation. not all tiles will be used. the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)