<span>The answer is enzymes. Enzymes are biological catalysts and increase the speed of change from substrate to product. The name of enzymes is usually derived from the substrate they break down. For example, lactase breaks down sugar lactose. The name of enzymes contains suffix -ase, for instance, carbonic anhydrase, lactase, lipase, amylase, etc...</span>
What property of the pigment chlorophyll makes it appear green? Chlorophyll absorbs all of the visible spectrum of light except green, which it reflects. This is what makes it appear green.
The former means those most fit, those with the best set of skills and features for the given environment, will live to pass on the said features in the offspring (with ants, for example, being incredibly fit and adaptable creatures). The latter suggests there is an objective way to measure the "meaningfulness" of each species and having only those most meaningful survive. But this differs from species to species - for a house cat, the great white shark is utterly meaningless.
Also, the meaningful animal has no actual advantage over another to help him survive, whereas fittness is exactly that - it is the ability to survive, ability to pass on your genes.
While I understand it may seem so in the case of domestic animals that the most meaningful to the human are those allowed to reproduce, it is actually the same law: those most adapted for human purpose (which, of course, in the given case means the most meaningful) ARE the fittest here in the human-controlled environment.
The answer is C. Binary fission.
<span>The car is passed by a motorcycle that is moving faster than it which means both the car and the motorcycle is moving in the same direction. Since both object move in the same direction, the relative speed of the motorcycle would be slower. The speed would be:
relative speed= motorcycle speed - car speed
</span>relative speed= 80MPH- 55MPH= 25MPH