Which one of the following is a primary consumer in maize field ecosystem ?
(3) Grasshopper
Primary consumers are herbivores that feed directly on producers.
In a maize field, maize plants are the producers ⇒ the grasshopper, which feeds on the leaves, is the primary consumer.
Phytoplankton are producers of aquatic ecosystems; lion and wolf are carnivores.
Answer: (3)
When man eats fish which feeds on zooplankton which have eaten small plants, the producer in the chain is :
The rate of formation of new organic matter by rabbit in a grassland, is called :
The second stage of hydrosere is occupied by plants like
Identify the likely organisms (a), (b), (c) and (d) in the food web shown below : [figure]
Which one of the following is not a gaseous biogeochemical cycle in ecosystem?
Identify the possible link "A" in the following food chain: Plant insect frog "A" Eagle
Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels? [figure]
Which one of the following is not a functional unit of an ecosystem?
Which one of the following animals may occupy more than one trophic level in the same ecosystem at the same time?