Fill in the following blanks with suitable words :
(a) Decomposer organisms are..........in their action.
(b) In nature, all green plants are............ whereas animals are consumers.
(c) A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............
(d) The science that deals with the inter-relationships of living things with one another and their environment is called...........
(e) Plastic is a ...............material whereas paper is a.............material.

Fill in the following blanks with suitable words:

(a) Decomposer organisms are ___in their action.

(b) In nature, all green plants are___ whereas animals are consumers.

(c) A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a ___

(d) The science that deals with the inter-relationships of living things with one another and their environment is called___

(e) Plastic is a ___ material whereas paper is a ___material.

Fill in the blanks.

1. Living things in the environment are ……………. factors.

2. Biotic factors, abiotic factors and their interactions with one another form an ………….. .

3. …………… itself is one large biome.

4. The number of biotic factors in an ecosystem is decided by …………….. .

5. Green plants in the living world are …………….. .

6. Organisms that depend directly on autotrophs are known as …………. or ……….… .

7. Detritivores feed upon …………. of living things.

8. Each level in a food chain is called a …………….. .

Fill in the following blanks with suitable words :
(a) Gums and resins are the ___products of plants.
(b) Bowman's capsule and tubule taken together make a___
(c) The organs which extract the nitrogenous wastes from the blood are___
(d) The extracellular fluid which always flows from body tissues to the heart is called___
(e) The blood cells make antibodies are_________ whereas ___blood cells help in respiration.