To dissolve water related problems and to administer the use of water, there was the need of law to regulate resources of water.
Explanation:
The area that deals with the resources of water and its uses, water related problems and its ownership is the law of water resources. Water law must be applied to those regions of water bodies that need to be maintained for certain purposes. This law of water works differently in the U.S.A and in the western states.
In the law of United States, it deals with the water rights that are different in different region and to resolve issues related to water. In the Union of Europe, it deals with the management and administration of resources of water.
Answer: The enzyme increases the effectiveness of reactant collisions thereby increasing the number of reactant molecules that reach activation energy.
A reaction occur if the substrates needed collide with each other. Enzyme is like a mold that can hold the substrate so that it will be easier to collide. The effect of enzyme could be seen in the activation energy needed to do the reaction because enzyme lower it very much. This will help speed up the reaction so it create product faster.
Answer: c.Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
Natural selection is the differential survival and reproduction of individuals because of differences in the phenotype. Phenotypic characteristics favors the survival of some organisms in the population better than others. Example given by Darwin population of colored beetles green and red belonging to same species. Green ones mimic the color of grass not noticed by birds but red ones were noticed and eaten by birds. This is the selection by nature for better suited individuals. Green color gave the survival advantage to these beetles which is a phenotypic characteristic therefore, they will produce more offsprings than the red ones and also pass on the phenotypic trait to their offsprings.
Answer:
Pollen grains land on the stigma and move down the pollen tube into the ovary.