Question

In an ecosystem, green plants are known as
A.Primary consumers
B.Secondary consumers
C.Producers
D.Tertiary consumers

Answer 1

Hint:Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors contain plants, animals, and other living organisms. An ecosystem includes the way of living for organisms to live, feed, and reproduce within a particular area. Ecosystems contain four main things that are needed in an ecosystem: plants, animals, rocks and minerals, and water.

Complete answer:(A) The organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them. The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called secondary consumers.
(B) Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, and organisms that only eat autotrophic plants, but secondary consumers can either be carnivores or omnivores, in which Carnivores only eat other animals or organisms but the omnivores eat both plant and animal matter.
(C) Producers are organisms that create food from inorganic matter. The plants, lichens, and algae are the best examples for producers. These organisms convert water, sunlight, and carbon dioxide into carbohydrates. Consumers are organisms that cannot create their food.
(D) A carnivore at the topmost level in a food chain that feeds on other carnivores, an animal that feeds only on secondary consumers.
Hence, the correct option is (C) Producers.

Note:The Oceans in the world is the largest existing ecosystem on our planet. Covering over 71% of the Earth's surface. It is the source for the livelihood of nearly or almost 3 billion people. Ecosystems are generally classified into two classes namely natural and artificial. Artificial ecosystems are natural regions affected by man's interferences. They are artificial lakes, reservoirs, townships, and cities.