Which of the following communities is more vulnerable to invasion by outsides animals and plants
Mangroves
Tropical evergreen forests
Temperate forests
Oceanic island communities
Phosphorus is the major constituent of
$I.$ biological membranes
$II. $ nucleic acids
$III.$ cellular energy
Choose the correct option
Intermediate community between pioneer and climax communities is called
Which one is the main source of minerals essential for man and other organisms
Biocycle is referred as
An ecosystem, such as an aquarium, is selfsustaining if it involves the interaction between organisms, a flow of energy, and the presence of