Question
What is a ‘food web’? Show its formation.

Answer

The interconnected food chains operating in an ecosystem which establish a network of relationships between various species is called a food web. In this food web, we can see a network of numerous pathways along which the food flows within grass land community. This food web starts from the plants which is producer and end in top carnivore hawk.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Hydrochloric acid reacts with a metal X to form a gas Y which bums with a ‘pop’ sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.
  1. Name X and Y.
  2. Write the chemical equation of the reaction of metal X with.
  1. Hydrochloric acid, and
  2. Sodium hydroxide solution.
A domestic lighting circuit has a fuse of 5A. If the mains supply is at 230V, calculate the maximum number of 36W tube-lights that can be safely used in this circuit.
Which of the following are concave mirrors and which convex mirrors?
Shaving mirrors, Car headlight mirror, Searchlight mirror, Driving mirror, Dentist’s inspection mirror, Torch mirror, Staircase mirror in a double-decker bus, Make-up mirror, Solar furnace mirror, Satellite TV dish, Shop security mirror.
How are the modes for reproduction different in unicellular and multicellular organisms?
How did Mendel explain that it is possible that a trait is inherited but not expressed in an organism?
Three elements ‘X’, ‘Y’ and ‘Z’ have atomic numbers 7, 8 and 9 respectively.
  1. State their positions (Croup number and period number both) in the Modern Periodic Table.
  2. Arrange these elements in the decreasing order of their atomic radii.
  3. Write the formula of the compound formed when ‘X’ combines with ‘Z’.
A wire is 1.0m long, 0.2mm in diameter and has a resistance of $10Ω.$ Calculate the resistivity of its material?
How far should an object be placed from a convex lens of focal length 20cm to obtain its image at a distance of 30cm from the lens? What will be the height of the image, if the objects is 6cm tall?
Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.
What is a source of energy? What are the two main categories of the sources of energy?