Answer:
While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars. Brahe had collected a lifetime of astronomical observations, which, on his death, passed into Kepler’s hands. (Brahe, who had his own Earth-centered model of the Universe, withheld the bulk of his observations from Kepler at least in part because he did not want Kepler to use them to prove Copernican theory correct.) Using these observations, Kepler found that the orbits of the planets followed three laws.
The answer is the smoking of crack cocaine. This drug is more simply known as<span> '</span>crack'<span>, and is widely considered the most addictive form of cocaine. Crack is widely used as a recreational drug, and was first widely used in US cities during the mid 1980s. The term 'crack epidemic' describes the rapid increase in its use and the resulting socio-economic problems that resulted.</span>
1. simple diffusion.
<span>2. facilitated diffusion.
i think</span>
Advantages:
Enhance protein digestion. The addition of a protease to a feed can result in improved amino acid digestibility across various protein sources. Minimize the impact of anti-nutritional factors.
Disadvantages:
Enzymes can be denatured by even a small increase in temperature. They are also susceptible to poisons and changes in pH. This means the conditions they work in must be tightly controlled
Enzymes can be expensive to produce
Contamination of the enzyme with other substances can affect the reaction.
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