Question

In a grassland ecosystem, if the number of primary producers(plants) is approximately 6 million, the number of top carnivores, which may be supported by them will be.
A. 3 million
B. 30 million
C. 6 million
D. 60 million

Answer 1

Hint:- Grassland, a region where the landscape is covered by almost constant grass cover. In conditions favourable to the growth of this plant cover, grasslands exist, but not to those of taller plants , particularly trees and shrubs. The reasons preventing such taller, woody vegetation from being formed are varied.

Complete solution:
There needs to be a flow of energy inside it for an ecosystem to function. In the form of food, the ecosystem's species require resources. This energy's ultimate source is the sun. Solar energy is trapped and converted into the chemical energy of food by producers such as green plants. When the producer is consumed by a primary user, a portion of this energy is passed on to it.A secondary consumer then consumes the main consumer. And the secondary consumer, and so forth, may be absorbed by a tertiary consumer. Thus, electricity is moved from one user to the next higher market standard. A food chain is called a collection of species in which food energy circulates in an ecosystem.Grass is consumed by deer in a forest ecosystem, and is consumed by a tiger in exchange. The hay, the deer and the tiger form a chain of food. Energy moves from the grass (producer) to the deer (primary consumer) to the tiger (secondary consumer) within this food chain. A food chain may consist of grasses and other plants, grasshoppers, frogs, snakes and hawks in a grassland ecosystem.The species in the food chain include bacteria, tiny mammals, insects and their eggs, tiny whales, large fish, and a fish-eating bird or mammal in a freshwater marine habitat like a marsh. The pyramid of numbers in a grassland ecosystem is upright. If roughly 6 million plants are the main producers, so the number of top carnivores must be less than 6 million.
Therefore the correct answer is option (A).

Note:- Biomes of grasslands are necessary to sustain the crop of many domesticated and wild herbivores such as horse, mule, ass, cow, pig, sheep , goat, buffalo, camel, deer, zebra, etc. that provide man with fruit, milk, wool and transport. We may also conclude that the Grassland Habitat is a mixture of grass, clover and other types of legumes, dicotyledonous, herbs and shrubs that contribute to a high degree of preservation.With manufacturers, a food chain still starts. Next in the chain come herbivores (plant-eaters). Carnivores (flesh-eaters) kill them. A few grocery chains can be long and can stretch to the consumer's fourth , fifth or even sixth order.