Distinguish between
$(a)$ Litter and detritus
$(b)$ Primary and secondary productivity
$(a)$ Litter and detritus
Litter | Detritus | ||
$1$. Litter contains all kinds of wastes generated above the ground. | $1$. Detritus is composed of the remains of dead plants and animals. | ||
$2$. Litter contains both biodegradable and non-biodegradable matter. | $2$. Detritus contains only biodegradable matter. |
$(b)$ Primary and secondary productivity
Primary productivity | Secondary productivity | |
$1$. It is defined as the amount of organic matter produced by producers per unit area over a period of time. | $1$. It is defined as the rate of production of organic matter by consumers over a period of time. |
$10\%$ law of flow of energy in ecosystem was proposed by
Ecosystem creates
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Nepenthes is a
With regard to ecological food chain, man is a