Answer:
Option (2).
Explanation:
The classification of the animals are done on the basis of similarity and differences among the individuals. The system of classification was first explained by Linnaean classification.
The most inclusive of the taxonomy level is kingdom that includes in the plants and animals in the separate kingdom. From the kingdom they are further classified into phylum then into the class, family and order. After the order the organisms are further classified into genus and the species is the least inclusive level of taxonomy.
Thus, the correct answer is option (2).
Explanation:
Percentage w/v means that weight of solute present in 100 ml of a solution. Hence, 15% w/v means that 15 gram of solute per 100 ml of solution.
Hence, for 2 L (or 2000 mL) preparation the amount of mass will be calculated as follows.

= 300 g
Thus, we can conclude that weight of Tris-HCL required is 300 g.
The carnivore population would also increase because there would be a
larger food-source for carnivorous so more of them would be able to
survive.
The carnivore population would go up as well because they have more food
(herbivores) to eat. There would be more food to sustain the carnivore
population.