Question

1) What is the general name of the microorganisms such as bacteria and fungi which breakdown plant and animal matter?
2) What name is given to the branchy part of a tree above the stem?
3) Name the topmost layer of the forest.
4) What other name is given for decomposers?
5) State whether the following statement is true or false.
a) Mushroom is a decomposer.
6) Name the dark colored substance formed by the action of decomposers on dead plant leaves.
7) Micro-organisms act upon the dead plants to produce
Sand/mushroom/humus/wood
8) Which of the following is not a forest product gum/plywood/sealing wax/kerosene
9) Which type of organism always occurs at the first step in every food chain heterotrophs/autotrophs/saprotroph/scavenger
10) One of the following is not produced by the action of decomposers on the dead parts of plants and dead bodies of animals. This one is carbon dioxide/oxygen/water/nutrients
11) Which of the following is not a function of the forest? Maintenance of water cycle/bringing sufficient rains/preventing flash floods/causing soil erosion
12) Which of the following is not a scavenger? Crow/jackal/lion/vulture
13) Which of the following help in maintaining the supply of nutrients to the growing plants and trees in a forest? Saprotrophs/autotrophs/carnivores/heterotrophs
14) Which of the following is not a function of the crowns of forests trees during the day time? Absorbs sun’s light energy/absorb oxygen from air/carry out photosynthesis/form a green cover
15) Which of the following do not help the flowering plants of a forest in pollination?
Honey bees/butterflies/kingfishers/antelopes

Answer 1

Answer:

Hello mate

Explanation:

1. Decomposers

Decomposers include organisms such as bacteria and fungi. Decomposers break down the organic matter in the dead bodies of plants and animals.

2. crown of

(a) The branchy part of a tree above the stem is known as the crown of the tree. The crown includes the top part of a tree which has all the branches and leaves of the tree.

3. canopy

The first, primary layer of the forest is called the canopy. The canopy is made up of the tops of trees.

4. Decomposers or saprotrophs are organisms that break down dead or decaying organisms, and in doing so carry out the natural process of decomposition.

5. True

6. Dead leaves and other dead bodies are organic matter, which means they contain carbon. Decomposers convert these complex compounds to carbon, which is dark in colour. So the dark colour substance is carbon.

7. Microorganisms act upon the dead plants to produce a thick brown or black substance called humus. The microorganisms convert the dead plants and animals to humus and are known as decomposers, like bacteria and fungi. Humus is a very important component of the soil as it contains many useful minerals and nutrients.

8.