Explanation:
The products in a reaction are the species on the right hand side of a chemical equation.
The reactants are the species on the left hand side of the equation.
A + B ⇒ C+ D
The reactants A and B, products are C and D.
Reactants are the species combining together.
The products are the results of the combination.
Types of chemical reactions;
Combination or synthesis; in this type of reaction, two species combines to give a product or products:
A + B ⇒ C+ D
Decomposition or cracking: a specie breaks down into one or more products:
A ⇒ B + C
Single displacement: one specie replaces another in a reaction:
A + CD ⇒ AC + D
Double displacement: species replaces another in a reaction:
AC + BD ⇒ AD + BC
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-because distinct populations of living things exist due to barriers to reproductive change.
-because fossils may be classified into distinct taxa due to the persistence of gaps.
The two reasons why the gaps among existing organisms, as well as the fossil records have remained after hundreds of years of research are because of distinct populations of living things exist due to barriers to reproductive change and because fossils may be classified into distinct taxa due to the persistence of gaps.
Algae, Bacteria and Fungi
Some Genetically modified crops do not need pesticides, Some Genetically pigs have leaner meat
Answer:
After being hunted almost to extinction, the humpback whale population has rebounded dramatically. Rapidly melting Antarctica ice poses a threat to coastal cities, but there is at least one species that is benefiting: Humpback whales are flourishing these days, due to an abundance of krill.
Pre-hunting population size may have been as many as 200,000-300,000 whales. They were estimated to number around 2,300 in 1998 and to be increasing between 2.4-8.4% per year. The IWC is undertaking an assessment of Antarctic blue whales at present.
